West Nile Virus (WNV) and Eastern Equine Encephalitis (EEE) spread to humans by the bite of an infected mosquito. When a mosquito bites an infected bird, the mosquito becomes infected. The infected mosquito could then transmit the infection to a human that it bites. Mosquitoes are most active from June to October. The following Fact Sheets address precautions that are recommended during these months in a variety of circumstances or situations.
