Sandown officials have announced the town will spray for mosquitoes after some collected there tested positive for Eastern equine encephalitis. A notice to that effect was posted on the town website yesterday.
“Spraying will be done as soon as weather permits,” the notice read.
Dragon Mosquito also reported mosquitoes collected in town tested positive for EEE.
The mosquito control company also reported mosquitoes collected in nearby Hampstead tested positive for West Nile virus.
The state Department of Health and Human Services reported Tuesday the first human case of WNV, an adult from Chesterfield who has recovered.
The number of mosquito batches testing positive for WNV or EEE is growing. September is traditionally the most active month.
Londonderry will spray its town and school fields Saturday evening after mosquitoes there tested positive for EEE. Londonderry already sprayed last month, just days before its annual Old Home Day celebration.
Southern New Hampshire, Rockingham County in particular, is at the highest risk for both mosquito-borne illnesses.
The risk continues, according to public health officials, until there is a genuine killing frost. With temperatures in the 90s yesterday, that event seems unlikely for some time to come.
People are urged to use mosquito repellent with DEET, get rid of standing water, and avoid outdoor activity at dawn and dusk.