Slow increase in cases of West Nile fever in USA

Although the number of reported cases of West Nile fever is slowly increasing, the number of states reporting cases is increasing every week. There are now 17 cases reported by 12 states.

Visit our Health Library for more information on exposure to and the prevention of West Nile Fever.

Advice For Travellers

Although there are few human cases of this infection, infected mosquitos are widespread. The risk of exposure remains very low as the season for transmission begins. However, since there is no vaccine or treatment for West Nile fever, travellers to areas where this virus has been found can reduce their risk of exposure by taking all necessary precautions to avoid mosquito bites.

Global Monitoring To Keep You Safe While You Travel

Sign up your trip to receive real-time, exclusive travel alerts to help you stay safe while away from home.