As mosquitoes all around Southern New Hampshire test positive for WNV, anxiety continues to grow for residents

Blood filled female mosquito

West Nile Virus detected in Stratham, Sandown and Pelham, which has raised concern among NH residents.

As reports come in regards to mosquito-borne illness activity going on all around us, Southern New Hampshire residents are getting more anxious. The newest positive test results for West Nile Virus indicate the virus has been detected in two mosquito pools in Stratham, N.H., making it at least the third community in the state this summer where the virus has surfaced. This new location comes to us after the virus was also identifed last week in nearby Sandown, mosquito samples taken from a testing pool have tested positive for West Nile Virus. According to a report in the Eagle Tribune, the timing for this discovery couldn’t have gotten much worse. The positive test results that indicate the presence of WNV in the Sandown community came on the eve of the annual summer event “Old Home Days“, which has become a tradition in Sandown and the surrounding communities. With the festivities in town and with a lot of people being outside this past weekend. Officials said they would rather be safe than sorry and began emergency spraying for mosquitoes throughout the town prior to the event. Town officials said parts of the town are typically sprayed for mosquitoes, but the spraying is happening earlier in the year than usual, which seems to be the case all over the area as other positive test results continue to grow. Last year Sandown was the first town in the state to test positive for West Nile Virus.

WNV warning sign

In addition to utilizing a mosquito control and protection program at home, avoid areas where mosquitoes are prevalent.

The positive WNV results come in just a short time after two mosquito pools in Pelham also tested positive for the virus. Officials are quick to point out that mosquito season in New Hampshire reaches peak level around Labor Day. Mosquito activity in NH generally offers no relief until mid-October, and in keeping with years past sometimes mosquitoes will continue to be a source of concern until the arrival of the season’s first snow. With this in mind, it is important to remain vigilant in exercising safe mosquito practices at home and abroad.

In our region, human infections of mosquito-borne illnesses such as West Nile Virus and Eastern Equine Encephalitis make top news during the summer months. As of yet, there have been no reports of Eastern Equine Encephalits for this season.

It can sometimes be hard to initially identify the presence of the disease because some cases are asymptomatic, which means the individual infected may show no symptoms of being ill. Being infected with West Nile Virus can also take those infected down two very different paths, one being the development of West Nile Fever and the other turning into West Nile Disease.


The day biting Asian tiger mosquito is a known vector of West Nile Virus.

According to the Centers for Disease Control and Prevention (CDC), It is estimated that about 20% of people who become infected with WNV will develop West Nile fever. Symptoms include fever, headache, tiredness, and body aches, occasionally with a skin rash (on the trunk of the body) and swollen lymph glands. While the illness can be as short as a few days, even healthy people have reported being sick for several weeks. The symptoms of severe disease (also called neuroinvasive disease, such as West Nile encephalitis or meningitis or West Nile poliomyelitis) include headache, high fever, neck stiffness, stupor, disorientation, coma, tremors, convulsions, muscle weakness, and paralysis. It is estimated that approximately 1 in 150 persons infected with the West Nile virus will develop a more severe form of disease. Serious illness can occur in people of any age; however people over age 50 and some immunocompromised persons (for example, transplant patients) are at the highest risk for getting severely ill when infected with WNV. Most people (about 4 out of 5) who are infected with West Nile virus will not develop any type of illness (an asymptomatic infection); however you cannot know ahead of time if you’ll get sick or not when infected.

Mosquito Squad mosquito free backyard

Keep your family safe from the risk of mosquito-borne illness this season!

During this most crucial time of the season, when the potential to contract a mosquito-borne illness is at its peak, it’s important for NH residents to reduce the risk of coming into contact with a mosquito altogether. The truth is you never know which mosquitoes could be carrying West Nile, and which are not. The best prevention against all mosquito related illnesses is to exercise efficient mosquito control and prevention practices. Mosquito Squad of Southern New Hampshire can eliminate and prevent the resurgence of mosquitoes on your property all season long with our barrier spray program. Our safe and effective barrier spray will eliminate what mosquitoes are present and prevent resurgence for 21 days. Getting started is easy and worry free. Our rotation program ensures mosquito control all summer long and you won’t have to play guessing games about mosquitoes any longer!

Mosquito Squad of SONH

The team at Mosquito Squad of SoNH

Contact Mosquito Squad of Southern New Hampshire to learn more about and our highly effective barrier spray program. Live mosquito free or die. Call now for a free quote • (603) 373 – 8863 • email: and start living the


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