BOSTON -- State health officials say West Nile virus has been detected in a mosquito sample in Pittsfield.
The Department of Public Health said on Friday that the sample was collected Tuesday in Pittsfield.
Authorities also found infected mosquitoes in a sample collected in Boston last week, the first of the season.
No human cases have been reported. Six cases of West Nile virus were reported last year.
Health officials recommend that people use mosquito repellent, protective clothing and consider staying inside during the peak evening hours for mosquitoes. They also advise draining standing water where mosquitoes lay eggs and making sure windows and doors are well-screened.