West Nile fever


West Nile fever is more common during the warmer months. Even if someone is infected, the risk of developing serious illness is very small.


Most people have no symptoms. Those with symptoms may have fever, headache, body aches, fatigue, and back pain.


Most people recover from West Nile virus without treatment. Over-the-counter pain relievers can help ease mild headaches and muscle aches.

Last Updated Jun 13, 2017

Content from Mayo Clinic ©1998-2020 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved. Terms of Use