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Yellow Virus

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Yellow virus is a disease caused by flavivirus (small single stranded RNA viruses) transmitted by an infected mosquito bite.

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When and how the virus was discovered (historical background)

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When and how the virus was discovered (historical background)

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It was suspected by Carlos Finlay in 1881 and confirmed by Walter Reed, who proved Yellow Virus was transmitted by a specific type of mosquito laying the groundwork of disease control.

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Signs and Symptoms of the disease. Describe fully.

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Signs and Symptoms of the disease. Describe fully.

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Varies from mild to severe.

3-6 days: sudden onset of fever, chills, headache, back and muscle pain, nausea and fatigue (weakness, vomiting, loss of appetite)

Toxic Phase: high fever, jaundice (yellowing of skin and eyes), bleeding from the mouth, nose or eyes or stomach.

Leading to organ failure and fatality (abdominal pain, dark urine and shock)

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Yellow Fever | Pathogenesis (mosquitoes, virus), Signs & Symptoms, Diagnosis and Treatment

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Treatments, vaccinations and/or cures for the disease. Describe fully.

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Treatments, vaccinations and/or cures for the disease. Describe fully.

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There is no cure or specific antiviral treatment for yellow virus yet. There are a highly effective vaccine and supportive care.

rest and hydration

management of liver, fever and kidney failure

antibiotics for secondary bacterial infections

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List any host organisms (what organisms does the virus infect? )

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List any host organisms (what organisms does the virus infect? )

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Humans

Animals (infected monkeys can infect non infected humans with close contact) vise versa.

Plants

Bacteria

Archaea

Fungi

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Identify the type of transmission : how the virus is transmitted between organisms?

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Identify the type of transmission : how the virus is transmitted between organisms?

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It is transmitted into humans from the Aedes aegypti mosquito.

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Once in a host cell, what type of life cycle does the virus have: Lytic or Lysogenic?

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Once in a host cell, what type of life cycle does the virus have: Lytic or Lysogenic?

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Yellow Virus does not have a lysogenic life cycle, but instead follows a lytic replication cycle. In it's vertebrate hosts, which destroys host cells.

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Even animals can get Yellow Virus, its so sad

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Additional interesting facts of your choice such as virus outbreaks, how common the virus is etc. Min of 4 additional facts.

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Additional interesting facts of your choice such as virus outbreaks, how common the virus is etc. Min of 4 additional facts.

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1. Common in topical places such as the areas of Africa and South Africa

2. The Aedes aegypti was named after a Swedish naturalist who collected specimens in Egypt

3. Animals who have Yellow Fever will most likely die from the symptoms, unless given care

4. An infected person can travel and spread to new areas, for ex. The United States and The Caribbean

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cdc.gov (May 15, 2024) symptoms

canada.ca (Aug 27, 2025) Recommendations

World Health Organization (Oct 20, 2025) Treatment

sciencedirect. com (Sept 3, 2022) Origin

PMC PubMed Central (Feb 16, 2023) Lytic Cycle

Washington Stat Department of Health (unknown) Yellow Virus