Mpox (Monkeypox) | Transmission, Pathophysiology, Signs & Symptoms, Diagnosis, Treatment

JJ Medicine
9 Aug 202315:58

Summary

TLDRThis video covers Mpox (previously known as Monkeypox), a viral disease caused by the Mpox virus, part of the Orthopoxvirus genus, similar to smallpox but less severe. It discusses the virus's zoonotic origins, its transmission from animals to humans, and the 2022 outbreak that led to global human-to-human transmission, primarily through skin contact. Symptoms include a flu-like prodromal stage followed by a distinctive rash. Diagnosis is through lab tests, and treatment focuses on supportive care, with antivirals in severe cases. The video also touches on the impact of smallpox vaccination and the risks for immunocompromised individuals.

Takeaways

  • 🦠 Mpox, formerly known as monkeypox, is caused by the Mpox virus, which is related to the smallpox virus but less severe and less infectious.
  • 🐒 The virus is zoonotic, meaning it spreads from animals to humans. Humans are incidental hosts, and African rodents are the primary reservoirs.
  • 🌍 The first known case was in lab monkeys in 1959, but the first human case was reported in Zaire (now the Democratic Republic of Congo) in 1970.
  • 📈 Mpox cases increased after the discontinuation of the smallpox vaccine, which helped protect against the virus. An outbreak occurred in 2022 with over 30,000 cases in the US by early 2023.
  • 🤝 The virus spreads through respiratory droplets, prolonged close contact, direct contact with infected animals or humans, and contaminated surfaces. Skin-to-skin contact, particularly sexual transmission, has driven recent outbreaks.
  • 🧬 The virus enters the body through mucous membranes or the skin, replicates in lymph nodes, and eventually enters the bloodstream, causing a flu-like illness before a rash appears.
  • 💉 The incubation period ranges from 4 to 21 days, with symptoms like fever, chills, swollen lymph nodes, and a rash that develops in stages over 14 to 21 days.
  • 🧪 Diagnosis can be made through lab tests like PCR, viral culture, or electron microscopy. In some cases, clinical symptoms and exposure history are enough to diagnose.
  • 🩺 Treatment is mostly supportive as the infection is self-limiting, though antiviral therapies like tecoviromat may be used in severe cases or for immunocompromised patients.
  • ⚠️ Mpox can lead to complications like secondary bacterial infections, respiratory distress, eye infections, and encephalitis, with higher mortality risks in immunocompromised individuals.

Q & A

  • What is mpox, and how is it related to monkeypox?

    -Mpox, formerly known as monkeypox, is a viral infection caused by the mpox virus, which belongs to the genus Orthopoxvirus, the same genus as smallpox. However, mpox is less severe and less infectious than smallpox.

  • How is mpox transmitted between humans?

    -Mpox can be transmitted between humans primarily through close, prolonged face-to-face contact via respiratory droplets, direct skin-to-skin contact, sexual transmission, or contact with contaminated objects, such as clothing or furniture. Vertical transmission from a pregnant person to the fetus is also possible.

  • What are the primary animal hosts of the mpox virus?

    -The mpox virus is zoonotic, meaning it is spread from animals to humans. Its natural reservoirs are African rodents, including species like Gambian rats. Monkeys and humans are incidental hosts, meaning they are not the virus's intended hosts.

  • When was the mpox virus first discovered, and how did it get its name?

    -The mpox virus was first isolated in lab monkeys in Denmark in 1959, which is how it earned the name 'monkeypox.' The first human case was reported in Zaire (modern-day Democratic Republic of Congo) in 1970.

  • What are the symptoms of mpox, and how does the infection progress?

    -Mpox begins with a flu-like prodromal stage, including fever, chills, headaches, muscle aches, and swollen lymph nodes. This is followed by a rash that begins on the mouth or face and spreads to other parts of the body, including the palms and soles. The rash progresses from macules and papules to pustules, which eventually scab and heal over several weeks.

  • How long is the incubation period for mpox, and what does this period involve?

    -The incubation period for mpox ranges from 4 to 21 days, with an average of 12 days. During this time, the virus enters through mucous membranes or skin, spreads to local lymph nodes, multiplies, and eventually enters the bloodstream.

  • What factors contributed to the increased prevalence of mpox in recent years?

    -The decline in the use of the smallpox vaccine, which offers cross-protection against mpox, has led to an increase in cases. The 2022 outbreak was largely driven by human-to-human transmission, especially through sexual contact.

  • What complications can arise from mpox infections?

    -Complications of mpox can include secondary bacterial infections, respiratory distress, eye issues like keratitis, and, in severe cases, septicemia or encephalitis, especially in immunocompromised individuals.

  • How is mpox diagnosed by clinicians?

    -Mpox is diagnosed through laboratory methods such as isolating the virus, PCR testing, electron microscopy, and blood work. A diagnosis can also be made if symptoms appear within 21 days of exposure to a confirmed case.

  • What treatments are available for mpox infections?

    -Most mpox cases resolve on their own with supportive treatment. In severe cases, antiviral therapies such as tecovirimat (Tpoxx) may be used, particularly for immunocompromised patients or those with ocular symptoms.

Outlines

00:00

🦠 Introduction to Mpox: History and Characteristics

This paragraph introduces mpox, previously known as monkeypox. It details that mpox is caused by the mpox virus, which is a zoonotic double-stranded DNA virus related to smallpox but less severe and less contagious. It discusses the virus's history, including its identification in monkeys in 1959 and its first human case in Zaire (now the Democratic Republic of Congo) in 1970. It outlines the recent 2022 outbreak, noting that the virus has spread widely with over 30,000 cases in the U.S. by early 2023.

05:02

🧬 Modes of Transmission: Animal and Human Spread

This paragraph focuses on how mpox is transmitted. Initially, it was primarily spread from animals to humans (zoonotic transmission), but in the 2022 outbreak, human-to-human transmission became more common, primarily through skin-to-skin contact, especially during sexual activity. Other transmission methods include direct contact with infected animals or their products, contact with contaminated surfaces or clothing, and vertical transmission from pregnant women to their fetuses.

10:04

🧪 Pathophysiology: How Mpox Infects the Body

Here, the focus shifts to how the mpox virus enters and spreads within the human body. It can enter through mucosal membranes or skin and first infects the local lymph nodes, then enters the bloodstream in an initial viremia stage, followed by secondary viremia when symptoms typically appear. The incubation period is typically 4 to 21 days. It highlights the virus’s use of viral proteins to infect cells and describes the progression through the blood to other organs.

15:05

🤒 Clinical Signs and Symptoms: Stages of Mpox Infection

This section explains the clinical symptoms of mpox. Patients first experience flu-like symptoms such as fever, chills, headache, muscle aches, fatigue, and sore throat during a prodromal stage that occurs 1 to 4 days before a rash appears. Swollen lymph nodes (lymphadenopathy) are a key symptom distinguishing mpox from other pox viruses. Afterward, the rash begins on the face or oral mucosa and spreads to other parts of the body, developing through stages from macules and papules to pustules.

🦠 Rash Development and Complications

The skin rash characteristic of mpox spreads from the face to other areas of the body, including the trunk, extremities, palms, and soles, and may begin in the genital and perianal areas in recent outbreaks. The rash progresses from macules and papules to vesicles, pustules, and then scabs, which may result in scarring. Complications include secondary bacterial infections, respiratory distress, eye problems, and, in severe cases, encephalitis or septicemia. Immunocompromised individuals are at higher risk of these complications.

🔬 Diagnosis and Treatment of Mpox

This paragraph covers the diagnosis and treatment of mpox. Diagnosis is typically made through laboratory methods such as viral cultures, PCR tests, and electron microscopy. Symptoms can also help confirm the diagnosis, particularly if there has been contact with a known mpox case within 21 days. Most infections are self-limiting and resolve within 2 to 4 weeks, but antiviral treatments like tecovirimat may be used in severe cases, especially in immunocompromised patients.

🛡 Prognosis and Mortality

The final paragraph discusses the prognosis of mpox, including its potential fatality, particularly in immunocompromised patients or those with secondary infections. Early estimates suggest a 1-10% mortality rate in African populations, but this may be lower in other regions. Vaccination against smallpox (vaccinia) offers some protection against mpox, and newer vaccines are available to reduce the severity of the disease.

Mindmap

Keywords

💡Mpox

Mpox, previously known as monkeypox, is a viral disease caused by the mpox virus. It shares similarities with smallpox but is less severe and less infectious. The term 'mpox' reflects the rebranding of the disease, distancing it from the initial association with monkeys. In the video, it is described as a zoonotic infection that can spread from animals to humans and, in recent years, has seen human-to-human transmission.

💡Zoonotic infection

A zoonotic infection is a disease that spreads from animals to humans. Mpox is described as zoonotic, with animal reservoirs, especially African rodents, being the primary hosts of the virus. Human infections are incidental, occurring when the virus crosses the species barrier. This concept highlights the origins of the disease and its transmission dynamics.

💡Prodromal stage

The prodromal stage refers to the early phase of mpox infection, characterized by flu-like symptoms such as fever, muscle aches, and lymphadenopathy (swollen lymph nodes). This stage occurs 1-4 days before the appearance of the skin rash. Recognizing this stage is crucial in diagnosing mpox, especially distinguishing it from other viral infections.

💡Lymphadenopathy

Lymphadenopathy is the swelling and tenderness of lymph nodes, a common symptom during the early stages of mpox. This symptom, which occurs 2-3 days after fever onset, is an important distinguishing factor for mpox as it differentiates it from other similar poxvirus infections. It often appears in areas such as the cervical (neck), submandibular (jawline), and inguinal (groin) regions.

💡Human-to-human transmission

Human-to-human transmission refers to the spread of the mpox virus between people, primarily through close physical contact, such as skin-to-skin interactions or sexual transmission. This method of transmission became more prominent in the 2022 outbreak, with cases rising globally, highlighting a shift from the animal-to-human transmission typically associated with zoonotic diseases.

💡Incubation period

The incubation period is the time between exposure to the mpox virus and the appearance of symptoms. In the case of mpox, this period ranges from 4 to 21 days, with most cases showing symptoms around 12 days. This period is crucial for understanding the timeline of infection and aiding in early diagnosis and quarantine measures to prevent further spread.

💡Viremia

Viremia refers to the presence of the virus in the bloodstream. In mpox infections, there are two stages: initial viremia, when the virus first enters the blood, and secondary viremia, which occurs after the virus spreads to and from organ systems. The secondary viremia coincides with the onset of symptoms, marking the end of the incubation period.

💡Eruptive stage

The eruptive stage, also called the exanthem stage, is when the characteristic rash of mpox appears, typically after the prodromal phase. The rash often starts on the oral mucosa, spreading to the face, and can cover the trunk, extremities, palms, and soles. In recent outbreaks, rashes have been seen in the perianal and genital regions, which contributes to transmission via skin-to-skin contact.

💡Vertical transmission

Vertical transmission is the transfer of the mpox virus from a pregnant female to her developing fetus. The virus can cross the placental barrier, potentially leading to infection in the infant. This transmission route underscores the virus's impact on vulnerable populations, including pregnant women and their unborn children.

💡Tecoviromat

Tecoviromat is an antiviral treatment initially developed for variola virus (smallpox) but also used to treat mpox. It works by blocking the F13 viral protein, which is involved in the virus's ability to spread. While most mpox cases are self-limiting, tecoviromat may be necessary in severe cases, particularly for immunocompromised patients or those with complications such as ocular mpox.

Highlights

Mpox, formerly known as monkeypox, is caused by the mpox virus, which belongs to the Orthopoxvirus genus, the same genus as smallpox.

Mpox is less severe and less infectious than smallpox, but it shares similarities in symptoms like a flu-like illness followed by a rash.

The mpox virus is zoonotic, meaning it spreads from animals to humans, though human-to-human transmission can occur.

The first outbreak in humans was recorded in Zaire (now the Democratic Republic of Congo) in 1970, with cases rising after the cessation of the smallpox vaccine.

Mpox outbreaks in the Western Hemisphere began in 2003 due to the transportation of infected animals from Africa.

The most recent outbreak, starting in 2022, saw over 30,000 cases reported in the United States by early 2023.

Mpox can be transmitted through droplets from prolonged close contact, direct contact with infected animals, or human-to-human skin-to-skin contact, often through sexual transmission.

Indirect transmission can occur via contaminated clothing, bedding, or surfaces (fomites).

The incubation period for mpox is typically between 4 to 21 days, with an average of 12 days.

The prodromal stage of mpox includes flu-like symptoms such as fever, muscle aches, headaches, and swollen lymph nodes, which help distinguish it from other poxviruses.

Mpox rash usually begins in the mouth and spreads to the face, trunk, hands, and feet, with recent cases showing lesions primarily in the genital and perianal areas.

The rash evolves through stages from macules to pustules and can leave scars, taking 2 to 4 weeks to heal.

Complications of mpox include secondary bacterial infections, respiratory distress, and even encephalitis, particularly in immunocompromised individuals.

Mpox is diagnosed through laboratory tests, including PCR and electron microscopy, with leukocytosis and serology tests supporting diagnosis.

Treatment for mpox is primarily supportive, but antiviral therapies like tecoviromat can be used, especially in severe or ocular cases.

Transcripts

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in this session we're talking about mpox

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which was previously known as monkey pox

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so this is a disease caused by infection

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with a virus known as the impox virus

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and this impacts virus is a pox viridae

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virus and it's in the genus Ortho pox

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virus is in the same genus as smallpox

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so it can cause a prodromal or a

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flu-like illness at first and then cause

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a rash later so it looks like smallpox

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but it's not going to be as severe and

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it's going to be less infectious than

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smallpox now mpox virus is a relatively

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large virus and it's often described as

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brick-alike in appearance and it is a

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double-stranded DNA virus now mpox is a

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zoonotic infection meaning that it is

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spread from animals to humans but when

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it gets into the human population it can

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spread from Human to human but humans

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are incidental hosts meaning that

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they're not the hosts that this virus

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actually is looking for the virus is

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looking for particular animal hosts

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which we'll discuss in the next slide

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now there has been an increasing

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prevalence recently of infections with

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this particular virus and an outbreak

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did start in 2022 and as of early 2023

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there have been over 30 000 cases

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reported in the United States now let's

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discuss a brief history of this virus

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some of the first known cases and how it

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has spread so this particular virus was

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actually first isolated in lab monkeys

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that were sent from Singapore to Denmark

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in 1959. these monkeys arrived in

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Denmark and became ill and this

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particular virus was actually the cause

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of their illness this is the first known

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case of this virus so that was in a

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monkey and this is why the term monkey

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pox came to be but the first human

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infection was actually reported in Zaire

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which is modern day Democratic Republic

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of Congo in 1970. there were then

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additional cases in Cote devoir Liberia

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Nigeria and Sierra Leone so some of the

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earliest cases started in central Africa

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and then we started seeing more on the

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West Coast of Africa then over the next

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couple of decades cases of this virus

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start to increase in Central and western

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Africa and this increase in cases may be

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due to the cessation of the use of the

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smallpox vaccine the smallpox vaccine is

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known to actually suppress or limit the

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ability of impacts to cause infection or

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it leads to a milder form of infection

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so smallpox was eliminated in the world

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in 1977 and then afterwards the use of

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smallpox vaccine started to be in

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Decline and then after that point we

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start seeing more cases of mpox even

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with these increasing case numbers it

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was still limited to Western Africa

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until 2003 when the first cases started

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to appear in the Western Hemisphere so

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this was due to transportation of

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animals from Africa to the United States

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then we start seeing cases appear in the

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United States but we don't really see a

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large amount of human-to-human

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transmission most of it is from animals

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to humans but starting in May 2022 we

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start seeing more human to human trans

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Mission this is when we start seeing

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increasing Global case numbers initially

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we start seeing cases in the United

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Kingdom that first came from a traveler

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from Nigeria so initially there's only a

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handful of cases but by the end of 2022

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there's thousands of cases that have

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been identified on all inhabited

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continents and as we previously

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mentioned over 30 000 cases have been

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identified and reported in the United

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States alone let's discuss how this

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particular virus is transmitted so one

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way that this virus can be transmitted

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is through droplets so droplet contact

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is going to be from close contact so if

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you're up close with an individual and

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they are talking to you there can be

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some respiratory droplets that are

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exuded out but you would need prolonged

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face-to-face contact it's not going to

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be something where you walk by an

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individual and you get infected you have

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to be in close contact for a long period

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of time another very important way that

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this virus can be transmitted is through

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direct contact so some of the ways that

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this has been previously transmitted via

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direct contact is through contact with

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infected animals so these include

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prairie dogs or squirrels or monkeys or

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pigs or other animals as well including

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hedgehogs and it does seem to be the

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case that the natural reservoir for this

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particular virus is African rodents we

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mentioned before that humans are

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incidental hosts monkeys are also

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incidental hosts as well so they're not

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the host that the virus is looking for

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they just simply can cross a species

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barrier infect monkeys or humans and

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then that can be an incidental host but

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the natural reservoirs are the main

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hosts that this virus is going to use

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along with contact with infected animals

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you can have contact with the animal

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reservoirs themselves these again

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include African rodents like gambian

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rats is one of those species

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another way of getting this by direct

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contact is through ingestion of

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contaminated animal products and then

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what's been driving the most recent

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outbreak from May of 2022 has been human

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to human spread and this human human

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spread is going to be via skin-to-skin

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contact and the majority of these cases

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have been through sexual transmission so

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skin to skin contact especially through

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sexual transmission this has been the

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main driver of the most recent outbreak

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and other ways that this can be

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transmitted is through indirect contact

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so indirect contact is going to be

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contact with clothing or other Fabrics

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that have had contact with the skin

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lesions or other bodily fluids and

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another one would be fomites fomites

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would be furniture for instance if

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there's bodily fluids or if there's been

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contact with the fluid from skin lesions

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this can all be ways that transmission

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can occur and then another method of

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spread is through vertical transmission

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so vertical transmission is going to be

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from pregnant female to developing fetus

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or infant so it can be in the blood of

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the pregnant patient it can cross the

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placental barrier and infect the develo

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helping fetus in all of these methods of

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transmission are going to be due to the

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fact that this virus can be at high

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levels or high concentrations in not

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only the fluid from the skin lesions

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themselves but can also be in high

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amounts in the bodily fluids of patients

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who are infected this can include the

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saliva the blood vaginal fluid and semen

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so all of these can have high amounts of

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this virus that can Aid in transmission

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of the virus to other individuals let's

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talk about the pathophysiology of

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infection with mpox virus so if you're

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exposed to this virus either through

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droplets or through skin contact it can

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enter into and penetrate through the

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oropharynx or the nasopharynx so some of

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those mucosal membranes can also get in

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through the skin as well so again we

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talked about that skin to skin contact

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before and the inbox virus is going to

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use particular viral surface proteins to

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enter into host cells and one of those

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viral proteins is known as f-13

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and when it actually enters into its

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site of inoculation it can then spread

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into local lymph nodes so local lymph

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nodes are going to be the first site

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we're going to see this virus going to

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and then it can multiply in those lymph

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nodes and then eventually enter into the

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blood it will enter into the blood in

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what we call the initial viremia stage

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so this is the first time it enters the

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blood it's going to be the initial

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vairmia so viremia is just a word for

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virus in the blood

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and then after this initial viremia

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stage is going to enter into other organ

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systems it can spread into other

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organist systems via the blood and then

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it will stay in those organ systems and

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then it will eventually leave those

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organ systems and enter into the blood

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again and that is what we would call

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secondary viremia and this is when we

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actually have symptom onset of this

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particular condition which means that

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the time at which we get the virus and

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it goes through the lymph nodes initial

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viremia and goes into the organ systems

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and then leaves the other organ systems

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to enter the blood for the second time

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that secondary viremia that is the

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incubation period and that incubation

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period can go anywhere from 4 to 21 days

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and approximately most cases are going

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to be around 12 days so the incubation

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period is going to be the time at which

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you first get infected and then you

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start seeing symptoms so again it takes

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up to 21 days now let's talk about the

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clinical findings or the signs and

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symptoms of an mpox virus infection so

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we're first going to have a

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pre-erruptive or prodromal stage this is

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going to be a stage where the patient

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feels like they have a flu-like illness

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and it's going to occur one to four days

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prior to onset of the rash so when we

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think about mpox virus infections we're

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thinking about the rash but there's

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actually going to be this prodromal

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stage that occurs before the rash so one

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to four days prior to onset of the rash

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we're going to have these symptoms these

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include a fever so the fever can be 38.5

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to 40.5 degrees Celsius so it can be a

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relatively high fever so this is

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actually going to be the most often the

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first sign of infection and then

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patients can often have chills and

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sweats as well they can also have a

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severe headache myalges and back pain so

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myalges are going to be muscle aches and

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pains they can also have anorexia

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reduced appetite so all very common with

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a viral infection they can also have

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malaise and fatigue so feeling generally

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unwell and tired and then they can have

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pharyngitis or sore throat dyspnea or

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shortness of breath in a cough so again

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very vague and non-specific flu-like

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symptoms but something also very

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important with regards to this prodromal

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stage is that they can have

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lymphadenopathy we talked about the fact

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that the virus can enter into the lymph

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nodes and then more multiply in those

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lymph nodes they can cause

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lymphadenopathy again lymphadenopathy is

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going to be swollen tender lymph nodes

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and it occurs within two to three days

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of fever onset this is actually going to

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be the most important sign to

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distinguish monkey pox from other pox

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virus infections in the locations where

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we can have these swollen tender lymph

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nodes are often going to be related to

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the initial place of infection and some

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of them can include the cervical chain

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so some lymph nodes in the neck the

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submental so this would be under the

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chin submandibular so along the jawline

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and then inguinal in the groin area

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so again the cervical chain the

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submandibular and submental lymph nodes

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and then the inguinal lymph nodes can

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all be places where we can see these

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swollen tender lymph nodes and then

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after those one to four days of the

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prodromal stage we can have what we call

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the eruptive or xantham stage this is

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where we see a skin rash so the skin

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rash is going to look like this the rash

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is often going to begin on the oral

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mucosa so inside the mouth and then

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spread to the face and other areas of

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the body so very key and interesting

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point to make note of here we can see it

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on the trunk the extremities and the

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scalp and then it also may have a

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predilection for occurring on the palms

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of the hands and the soles of the feet

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as well in cases in the most recent

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Outbreak The lesions seem to first

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appear on the perianal and genital areas

play10:33

so this can contribute to that skin to

play10:35

skin transmission the skin rash is going

play10:37

to slowly develop into a vesicular or

play10:40

vesicle pustular rash we'll talk about

play10:42

this in more detail in the next slide

play10:43

and the lesions can be anywhere from 3

play10:45

to 15 millimeters in diameter emitter

play10:46

and the skin lesions can be up to

play10:49

thousands of them and these particular

play10:51

skin lesions will develop in stages over

play10:53

the course of 14 to 21 days let's talk

play10:55

about those stages of this particular

play10:57

skin rash so it's going to start out as

play11:00

macules and papules so macules are going

play11:02

to be flat skin lesions and papules can

play11:04

be slightly raised skin lesions so they

play11:06

can start off flat or slightly raised

play11:08

and then they're going to go through a

play11:11

set of different stages so they can

play11:13

become vesicles which are raised skin

play11:15

lesions with a little bit of fluid in

play11:16

them they can then become pustules or

play11:18

pus-filled so they can have a little

play11:19

white head on them they can then undergo

play11:21

umbilication which is the formation of

play11:24

little dot in the middle so umbilication

play11:25

is connected to umbilicus which is a

play11:28

belly button so these skin lesions can

play11:30

be described as having a little belly

play11:32

button or a spot on them or a little

play11:34

indentation on them over time they will

play11:36

then start to dry out they'll cross over

play11:38

and then they will start to de-squamate

play11:40

or start to sloth off so they can have

play11:43

their skin start to peel off over time

play11:45

this can occur over two to four weeks

play11:48

and some of these skin lesions can leave

play11:49

scarring so we can see pitting scars on

play11:52

some patients now there are other

play11:53

important complications with impox viral

play11:55

infections these include secondary

play11:57

bacterial infection you can imagine that

play11:59

if you've got these open wounds on

play12:00

different parts of your body you're more

play12:01

likely to have a secondary bacterial

play12:03

infection so bacteria getting into those

play12:05

open wounds and causing a skin infection

play12:07

some patients can also have respiratory

play12:09

distress some patients can also have eye

play12:11

issues like keratitis and corneal

play12:13

ulceration and then in other patients

play12:14

the infection can be so severe that we

play12:16

can have septicemia or an infection in

play12:18

the blood and then there can also be in

play12:21

some cases infection into the brain

play12:22

leading to Encephalitis or an

play12:24

inflammation of the brain these other

play12:25

complications are going to be more

play12:26

likely to occur in patients who are

play12:28

immuno compromised so very young

play12:30

patients very old patients patients on

play12:32

chemotherapies or who have cancer or

play12:34

patients who are diabetic or have

play12:36

co-infection with HIV or Aids so all

play12:39

very important to make note of when we

play12:41

talk about these complications now let's

play12:42

discuss how clinicians make the

play12:44

diagnosis of mpox viral infection

play12:46

actions so the diagnosis is going to be

play12:48

via laboratory methodology so taking a

play12:51

sample from a suspected case and then

play12:53

looking at that sample either in culture

play12:56

so if the m-pox virus is isolated this

play12:59

is one way to make the diagnosis other

play13:00

ways include PCR identification of the

play13:02

impacts virus and then electron

play13:04

microscopy if there's electron

play13:06

microscopy that demonstrates an orthodox

play13:08

viruses can be enough to make the

play13:09

diagnosis as well and then other

play13:11

diagnostic criteria can be used without

play13:13

laboratory investigation although this

play13:15

would be less preferred this way of

play13:17

making the diagnosis can involve the

play13:19

fact that if the patient has had contact

play13:21

with a known infection or known infected

play13:23

individual and they have symptoms that

play13:25

are the symptoms we just talked about in

play13:27

this lesson at up to 21 days after

play13:29

exposure that can be enough to make the

play13:31

diagnosis as well if it's past 21 days

play13:33

or if there have been no symptoms after

play13:35

21 days then we don't have to worry

play13:37

about this as we mentioned before the

play13:39

incubation period goes up to 21 days and

play13:41

then other blood work can be performed

play13:43

which can show leukocytosis this is a

play13:45

high white blood cell count and then

play13:47

serology testing can be performed to see

play13:49

if the patient has antibodies against

play13:51

impox virus how do clinicians treat this

play13:54

particular viral infection so the

play13:56

treatment of mpox viral infections is

play13:58

often not going to be required because

play14:00

this particular infection is going to be

play14:01

self-limiting so it's going to typically

play14:03

resolve on its own over the course of

play14:05

two to four weeks most of the time what

play14:07

is going to be used is supportive

play14:09

treatment so just helping the patient

play14:10

along with some of their signs and

play14:12

symptoms we talked about before so

play14:14

treating the symptoms because oftentimes

play14:16

this is going to resolve on its own if

play14:18

it is in one of those cases where there

play14:20

is a complication if it's in a patient

play14:22

who has immunocompromise oftentimes

play14:24

we're going to need other treatments

play14:26

these can include antiviral therapies so

play14:28

one of them is going to be tecoviromat

play14:30

or teapots this was initially a

play14:32

treatment for variola virus and it works

play14:35

by blocking that f-13 Viral protein we

play14:37

talked about before so this is a

play14:39

potential antiviral treatment for this

play14:41

condition and then in patients who have

play14:43

ocular mpox so if they have those ocular

play14:46

findings we talk before systemic

play14:48

antivirals can be important again

play14:50

tachoviramate and adding trifluridine

play14:52

can be important as well and some other

play14:54

important prognostic information with

play14:56

regards to empox viral infections

play14:58

include the fact that having impox

play15:00

infections can be fatal it can lead to

play15:03

mortality so some of the earlier

play15:05

estimates before the last outbreak

play15:07

showed that in African populations who

play15:10

were infected with mpox there was

play15:12

approximately one to ten percent

play15:14

mortality rate but what's important to

play15:16

point out is that the mortality is most

play15:18

often going to be due to a secondary

play15:20

infection or in patients who have

play15:21

immunocompromise we talked about some of

play15:24

those complications before septicemia

play15:26

and Encephalitis for instance so the

play15:27

mortality rate is definitely going to be

play15:29

higher if co-infected with HIV or being

play15:32

immunocompromised and we did talk

play15:34

earlier about the smallpox vaccination

play15:36

which is known as vaccinia if you were

play15:38

vaccinated with vaccini you're likely to

play15:41

have a milder form of this particular

play15:43

disease and there are some vaccinations

play15:45

for mpox that can be utilized as well

play15:47

help reduce the severity of infection

play15:50

please check my lesson on vaginal

play15:51

candidiasis and gonorrhea and if you

play15:53

haven't already please like And

play15:54

subscribe for more lessons like this one

play15:55

thanks so much for watching and hope see

play15:57

you next time

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الوسوم ذات الصلة
MpoxMonkeypoxVirus OutbreakSymptomsTransmissionZoonotic InfectionViral TreatmentDiagnosisImmunocompromisedRecent Epidemic
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