When heading outside this mosquito season, the Massachusetts Department of Public Health advises residents to take precaution, with Dartmouth now at “moderate” risk for Eastern equine encephalitis.

EEE is a rare but serious disease spread by the bite of an infected mosquito. The peak human transmission period occurs in August and September and persists until the first hard frost.

Symptoms usually appear three to 10 days after being bitten and include fever, headache, vomiting, diarrhea, seizures, behavioral changes and drowsiness.

Residents are advised to take personal preventative actions, such as using repellents and avoiding peak mosquito activity. Mosquitoes are most active between dusk and dawn.

The town of Dartmouth Board of Health has several recommendations for how residents can protect themselves and their families.

To avoid mosquito bites, avoid the peak mosquito hours by rescheduling outdoor activities that occur during the evening or early morning hours, wear long-sleeves, long pants and socks when outdoors, and apply bug spray.

To remove breeding sites and mosquito-proof homes, drain standing water where mosquitoes may lay their eggs, install or repair window and door screens, and check that window mount air conditioner units are tight fitting to the window frame.

Horse owners are also encouraged to vaccinate their horses and reduce their horses’ exposure to mosquitoes.

Risk levels are updated by the state each week. If the status changes in Dartmouth, there will be further public notifications.