West Nile Virus

Known as a vector for the West Nile virus, this Culex quinquefasciatus mosquito has landed on a human finger.

Protecting workers from mosquito bites can prevent diseases.

The most common way the West Nile virus is transmitted to workers is by the bite of a mosquito. Most people infected with West Nile virus will not have any symptoms. About 1 in 5 people who are infected will develop a fever and other symptoms. Less than 1% of those infected develop a serious, sometimes fatal, neurologic illness.