The Iowa Department of Public Health says West Nile is spread by mosquitoes and can produce symptoms ranging from fever and mild headache to life-threatening inflammation of the brain.
According to the Central Connecticut Health District, the mosquitoes that tested positive for the virus are in the Culex family.
Limit outdoor activities during dawn and dusk, when mosquitoes are most active. Standing water can be treated with EPA-approved larvicides to kill mosquitoes before they become adults. Test results are reported once a week by the Connecticut Agricultural Experiment Station.
There was one human case of West Nile virus in Oxford County in 2017.
Use effective insect repellent such as DEET or Picaridin.
Wear long, loose and light-colored clothing.
Health officials are urging residents to take steps to protect themselves from mosquito bites after Indiana's first human case of West Nile virus in 2018 was detected. In an outbreak in 2012, more than 1,000 people were infected and 36 people died across four North Texas counties.