Microbiology Practice Exam

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Prepare for the Microbiology Exam with comprehensive quizzes and questions. Enhance your understanding with detailed hints and explanations. Ace your test with confidence!

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West Nile virus is primarily transmitted by which vector?

Tick
Flea
Mosquito
Wind

The correct answer is: Mosquito

West Nile virus is primarily transmitted by mosquitoes, which serve as the main vector for this virus. The mosquitoes become infected by feeding on the blood of birds that carry the virus. Once infected, mosquitoes can then transmit the virus to humans and other animals through their bites. This mode of transmission is significant because it highlights the importance of mosquito control measures in preventing the spread of West Nile virus, especially in areas where it is endemic. The other options, such as ticks and fleas, do not play a role in the transmission of West Nile virus, as they are associated with different pathogens and diseases. Wind is not a vector for any viral transmission, as it does not facilitate the movement of infectious agents in a way that leads to disease spread. Therefore, focusing on mosquitoes as the vector emphasizes the ecological and epidemiological importance of these insects in the life cycle of the West Nile virus.