Neurology Now. 10(4):32-37, August/September 2014.
Since West Nile virus (WNV) surfaced in New York in 1999, thousands of Americans have become infected from a simple mosquito bite. Around 20 percent of infected people develop fever, headaches, body aches, joint pains, and fatigue. For 1 percent of people, WNV infects the brain and spinal cord, causing serious symptoms. But prevention can keep mosquitoes at bay.