Boston health officials are reporting the summer's first positive test for West Nile Virus in mosquitoes.

There have been no reported human cases of mosquito-borne viruses in Boston or elsewhere in Massachusetts so far this year.

The Boston Public Health Commission said Thursday that tests conducted earlier in the week found West Nile Virus in one mosquito pool in the Jamaica Plain neighborhood.

Dr. Anita Barry, director of the commission's Infectious Disease Bureau, says the results aren't surprising given the recent combination of rain and hot weather.

Residents are urged take simple precautions to avoid mosquito bites.

The Falmouth Health Department also reported Thursday that West Nile Virus had been found in a mosquito collected on Woods Hole Road in the Cape Cod town earlier this week.