http://www.bam.gov/sub_diseases/diseases_westnile.html
Centers for Disease Control and Prevention, U.S. Department of Health and Human Services
This document answers kids questions about West Nile, a virus that is spread by the bite of an infected mosquito. Although the chances that someone will get very sick from any one mosquito bite are low, it's good to learn how to protect yourself and help cut down on the number of mosquitoes.