West Nile virus is primarily transmitted by which vector?

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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

West Nile virus is primarily transmitted by which vector?

Explanation:
West Nile virus is transmitted by the bites of mosquitoes. In nature, birds act as reservoir hosts that maintain the virus; mosquitoes become infected when feeding on an infected bird and can then pass it to humans or other animals. This makes mosquitoes the primary vector. Ticks and sandflies transmit other pathogens, and birds are not the vectors for this virus, so they do not drive human transmission in the West Nile cycle.

West Nile virus is transmitted by the bites of mosquitoes. In nature, birds act as reservoir hosts that maintain the virus; mosquitoes become infected when feeding on an infected bird and can then pass it to humans or other animals. This makes mosquitoes the primary vector. Ticks and sandflies transmit other pathogens, and birds are not the vectors for this virus, so they do not drive human transmission in the West Nile cycle.

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