The risk level for West Nile virus in Boston has been raised to high, the Boston Public Health Commission said Wednesday.

A third mosquito pool has tested positive for West Nile virus within Hamilton County Public Health’s jurisdiction. Health officials noted HCPH jurisdiction does not include Cincinnati, Norwood, ...

Cumberland County tackles recent positive West Nile Virus samples with evening mosquito spraying in 12 municipalities.

More rain could bring more mosquitoes; How the Chesapeake Mosquito Control Commission is controlling the population ...

There is only one confirmed case of a human infection in Ohio, near Toledo in Fulton County. But doctors have found multiple ...