FRAMINGHAM - After another human case of West Nile virus (WNV) was reported in the state, the Massachusetts Department of Public Health (DPH) announced that Middlesex County, which includes Framingham, is at a moderate risk for additional human infection.

Middlesex County joined Norfolk County and Suffolk County in receiving the designation after a male in his 50s in Hampden County was exposed to the virus. It was the third human WNV case within Massachusetts this year.

WNV is typically transmitted to humans through bites from mosquitoes infected by the virus. Most humans infected by WNV do not show symptoms, according to state officials, although rare cases can potentially result in serious illness.

The DPH is reiterating tips to keep residents safe amid the risks. The department says repellent approved by the Environmental Protection Agency should be worn outdoors, while people should be mindful of the peak hours for mosquitoes: dusk to dawn. Long sleeves, pants, and socks can help protect skin as well. Standing water should be drained around homes, while screens should be repaired or installed.

To learn more, visit the DPH’s website by clicking here.