Dengue fever is caused by a member of which virus family?

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Prepare for the NBME Microbiology Test. Study with flashcards and multiple-choice questions. Each query comes with hints and detailed explanations. Ace your exam!

Multiple Choice

Dengue fever is caused by a member of which virus family?

Explanation:
This question tests viral family classification for dengue. Dengue fever is caused by a member of Flaviviridae, specifically the genus Flavivirus. Flaviviruses are enveloped, positive-sense single-stranded RNA viruses transmitted by arthropod vectors such as Aedes mosquitoes, and this group includes dengue, yellow fever, West Nile, and Zika. The other families listed represent different types of viruses: Togaviridae includes alphaviruses like chikungunya and rubella; Retroviridae includes retroviruses such as HIV that integrate into the host genome as DNA; Bunyaviridae comprises negative-sense, usually segmented RNA viruses like hantaviruses. Therefore, dengue is a flavivirus in the Flaviviridae family.

This question tests viral family classification for dengue. Dengue fever is caused by a member of Flaviviridae, specifically the genus Flavivirus. Flaviviruses are enveloped, positive-sense single-stranded RNA viruses transmitted by arthropod vectors such as Aedes mosquitoes, and this group includes dengue, yellow fever, West Nile, and Zika. The other families listed represent different types of viruses: Togaviridae includes alphaviruses like chikungunya and rubella; Retroviridae includes retroviruses such as HIV that integrate into the host genome as DNA; Bunyaviridae comprises negative-sense, usually segmented RNA viruses like hantaviruses. Therefore, dengue is a flavivirus in the Flaviviridae family.

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