Mosquito samples were collected in a trap as part of surveillance by the Department of Public Health and Wellness and tested by its laboratory. The mosquitoes testing positive for West Nile were collected in the 40214 ZIP code.
There have been no human cases of West Nile virus this year in Louisville. In 2015 there were three human cases.
But, “This is an indication that the West Nile virus is present again this year in Louisville,” said Dr. Joann Schulte, director of the Louisville Metro Department of Public Health and Wellness. “West Nile virus is most commonly transmitted to humans by mosquitoes. You can reduce your risk of being infected with West Nile virus by using insect repellent and wearing protective clothing to prevent mosquito bites.”
Fewer than 1 in 150 people infected with West Nile virus will develop serious disease. About 1 in 5 people who are infected will develop a fever with other symptoms such as headache, body aches, joint pains, vomiting, diarrhea, or rash. Most people with this type of West Nile virus disease recover completely, but fatigue and weakness can last for weeks or months. Less than 1 percent of people who are infected will develop a serious neurologic illness such as encephalitis or meningitis (inflammation of the brain or surrounding tissues).The elderly and those with compromised immune systems are at increased risk for serious disease from West Nile virus.
The Department of Public Health and Wellness advises people to take the following precautions:
Avoid Mosquito Bites
Mosquito-Proof Your Home
The Louisville Metro Department of Public Health and Wellness has operated a mosquito control program for more than 50 years. The department does surveillance of mosquito populations with traps strategically located throughout the community, and tests mosquitos for such diseases as Zika and West Nile virus. In the spring the department pre-treats potential mosquito breeding sites with larvicide to prevent hatch offs. In the summer it treats catch basins and fogs to control adult mosquito populations.
To check on areas to be fogged each week or to sign up for fogging alerts, call the mosquito hotline, 574-6641, or visit https://louisvilleky.gov/government/health-wellness/mosquito-information.
To log a complaint about mosquito problems in your neighborhood, call Metro Call by dialing 311 or 574-5000.