West Nile Virus: 2013 Update

FAIRFAX, Va. (September 5, 2013) – According to statistics from the Centers for Disease Control and Prevention (CDC), this West Nile virus season has been less severe than 2012. Last year was the deadliest year on record in the United States for West Nile virus, but education and awareness are hopefully helping bring those numbers down. West Nile virus is spread to humans by infected mosquitoes.

Below are West Nile virus statistics that have been reported to the CDC as of August 27, 2013.

  • WNV has been reported in birds or mosquitoes in 45 states.
  • WNV has been reported in humans in 35 states.
  • The top states reporting human cases of WNV are California, Colorado and South Dakota.
  • There have been 13 reported human fatalities due to WNV this year.