Mosquitoes in southern Maine test positive for Jamestown Canyon virus

PORTLAND PRESS HERALD • August 22, 2023

Mosquitoes collected in York County have tested positive for a virus that can be transmitted to people and was last detected in Maine four years ago, the state said Tuesday. It is the first time since 2019 that Jamestown Canyon Virus, or JCV, has been detected in the state. The virus is more common in other parts of the country, especially the upper Midwest. It causes a fever and flu-like symptoms.