NPR logo

West Nile Virus Leaves Forecasters Puzzled

  • Download
  • <iframe src="https://www.npr.org/player/embed/4224001/4224002" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
West Nile Virus Leaves Forecasters Puzzled

Health

West Nile Virus Leaves Forecasters Puzzled

West Nile Virus Leaves Forecasters Puzzled

  • Download
  • <iframe src="https://www.npr.org/player/embed/4224001/4224002" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Scientists are having a hard time producing an accurate prediction of the impact of the West Nile virus. Epidemic outbreaks were forecast for California in 2004, but failed to materialize. NPR's John Nielsen reports.

We no longer support commenting on NPR.org stories, but you can find us every day on Facebook, Twitter, email, and many other platforms. Learn more or contact us.