West Nile Virus Transmission Cycle

West Nile virus transmission cycle

Illustration copyright 2005. Adapted from the U.S. Centers for Disease Control and Prevention. Available online: http://www.cdc.gov

Mosquitoes become infected with West Nile virus when they bite infected birds. And then they may transmit the virus to humans and animals when they bite to take blood.

Current as of: February 11, 2020

Author: Healthwise Staff
Medical Review: E. Gregory Thompson, MD - Internal Medicine
Adam Husney, MD - Family Medicine
Leslie A. Tengelsen, PhD, DVM - Epidemiology