MCQ IN MEDICINE

Detailed explanation-1: -Mosquitoes of the genus Culex are generally considered the principal vectors of WNV, in particular Cx. Pipiens. WNV is maintained in mosquito populations through vertical transmission (adults to eggs). Birds are the reservoir hosts of WNV.

Detailed explanation-2: -In addition to mosquito bites, WNV may be transmitted through contact with infected animals, their blood, or other tissues. Mosquitoes of the genus Culex are generally considered the principal vectors of WNV, in particular, Cx. pipiens.

Detailed explanation-3: -West Nile virus (WNV) is the leading cause of mosquito-borne disease in the continental United States. It is most commonly spread to people by the bite of an infected mosquito. Cases of WNV occur during mosquito season, which starts in the summer and continues through fall.

Detailed explanation-4: -West Nile Virus (WNV) Disease is spread by the bite of a mosquito infected with the virus. Mosquitoes become infected when they feed on infected birds.

Detailed explanation-5: -The pathogen WNV is an enveloped positive-stranded ribonucleic acid (RNA) virus belonging to the Japanese encephalitis serocomplex (Flavivirus genus, Flaviviridae family) [6].