Brian MurphyEnvironmental Education

School District of Lee County

Lee County Mosquito Control District

Neil WilkinsonFlorida Gulf Coast University

Disease transmission

300 – 500 million cases per year

approximately 3 million deaths

200,000 cases

30,000 deaths

50 million cases

(head) (inflamation)

West Nile Virus Transmission Cycle

West Nilevirus

West Nilevirus

Mosquito vector

Incidental infections

Bird reservoir hosts

Incidental infections

West Nile Virus

•Flu-like illness

•Moderate to high fever

•Headache, sore throat, backache, tiredness

•Rash

•meningitis or encephalitis

•Most fatal cases >50 years old.

West Nile Outbreak 2003

9862 human cases

2862 with neurological symptoms

284 deaths

West Nile Outbreak 20042,470 human cases *

88 Deaths

* reported cases to the Centers for Disease Control as of Feb. 16, 2005

41 cases in FL with 2 death