Connecticut Department of Health officials say a woman has tested positive for West Nile virus, becoming the state's first case this year.

Officials say a woman in her 50s from New Haven County became ill during the third week in July and has since recovered.

"As we approach the end of summer and continue to enjoy time outdoors with family, friends, and neighbors, it is important to prevent mosquito bites to reduce your risk of exposure to West Nile virus infection," said DPH Commissioner Manisha Juthani, MD.

They say most people with West Nile virus don't develop symptoms. People over the age of 60 are at the highest risk of serious illness.