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Dengue virus

Summary of Dengue virus
Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. Dengue is a Flavivirus and is a linear, enveloped, single stranded, positive sense, RNA virus. Symptoms typically begin three to fourteen days after infection. This may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash. Recovery generally takes less than two to seven days. In a small proportion of cases, the disease develops into the life-threatening dengue hemorrhagic fever, resulting in bleeding, low levels of blood platelets and blood plasma leakage, or into dengue shock syndrome, where dangerously low blood pressure occurs.

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Dengue virus

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High Yield Notes
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Dengue virus

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USMLE® Step 1 style questions USMLE

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USMLE® Step 2 style questions USMLE

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 A 27-year-old woman comes to the emergency department because of severe fever, nausea, and generalized muscle, and joint pain. Her temperature is 40°C (104°F). She says that she returned to the United States a week ago after spending two weeks in southeast Asia doing charity work. She received all recommended vaccines prior to travelling. Physical examination shows mild gingival bleeding and petechial rash on her thorax. Laboratory studies show:



 Which of the following is the most likely diagnosis? 

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