State health officials reported Thursday that mosquitoes infected with the West Nile virus have been found in Manchester.

The mosquitoes trapped June 27 are the first West Nile-positive mosquitoes identified in the state this year, the Department of Public Health said.

This is the ninth year the West Nile virus has been found in Connecticut. Last year, the virus in mosquitoes or humans turned up in 25 towns.

Health officials are urging residents -- especially the elderly -- to take precautions to avoid mosquito bites. Symptoms in people include fever, headache, body aches, nausea or a rash.