West Nile Virus and EEE are arboviruses spread by infected mosquitoes.  http://www.mass.gov/eohhs/docs/dph/cdc/arbovirus/mosquito-species-ma.pdf

West Nile Virus

The WNV was first detected in North America in 1999.  Symptoms may occur 2-6 days after being bitten.  (70% of people infected do not go on to develop symptoms).  Those who do have symptoms may have fever, headache, body aches, vomiting, diarrhea, and rash.  Although most people recover, fatigue and weakness can last weeks to months.  See a health care provider if you have any of the above symptoms.

There are no vaccines or medications to specifically treat this virus but over the counter pain relievers can reduce fever and relieve pain.

As in all mosquito borne illnesses:  avoid being outside dusk to dawn; wear long sleeves and long pants; use insect repellants such as DEET; empty standing water in the yard; and repair screens

Eastern Equine Encephalitis

EEE is also spread through the bite of an infected mosquito.  Those who contract the disease have a 30%-50% mortality rate.  Symptoms are:  high fever 103F-106F; stiff neck; headache; and lack of energy 3-10 days after a bite.  Inflammation and swelling of the brain is a serious complication and symptoms can worsen quickly.  Because of the seriousness of this disease prevention is key! http://www.mass.gov/eohhs/docs/dph/cdc/factsheets/eee.pdf