Recommendations for Protecting Laboratory, Field, and Clinical Workers from West Nile Virus Exposure

This document answers questions about West Nile virus that are relevant to laboratory, field and clinical workers. Recommendations are also included for preventing exposure of these workers to West Nile virus.

WNV is most often spread to humans from the bite of an infected mosquito. However, the virus may also be transmitted through contact with infected animals, their blood, or other tissues.