West Nile Virus Hits Newton Mosquitoes: Health Officials

NEWTON, MA — It was only a matter of time. First they hit the state, then they were found recently in Belmont. Now mosquitoes tested positive for the West Nile virus in Newton on July 21, according to the Massachusetts Department of Public Health and Newton.

Although no residents have yet tested positive for the virus, health officials are asking folks to take some preventative measures.

It's just the beginning of mosquito season and the highest risk of getting West Nile is usually from late July through the fall, according to health officials.

As the city works to address the issue, the public health department is reminding residents to use bug spray, and be mindful mosquitoes are particularly active between dawn and dusk, though particularly active at dusk and at dawn. In addition to repellent, the Newton Public Health Department says wearing a long-sleeved shirt, long pants and socks can help minimize exposure to mosquitoes. But that's not always feasible in the hot weather.

One thing to know is that mosquitoes breed where there's water. That means wetlands, swampy areas and any standing water — even that pitcher you have outside to water the plants. Make sure you don't have any standing water puddles near your home if you can help it, and make sure there are no holes in your screens to keep the buggers out.

West Nile virus is usually transmitted to humans through the bite of an infected mosquito, according to health officials. In 2017, there were six human cases of the infection in Massachusetts. While it can infect people of all ages, people over the age of 50 are at higher risk for severe cases of the disease. Most people infected with WNV will have no symptoms.

When present, symptoms tend to include fever and flu-like illness, according to health officials. In rare cases, more severe illness can occur.

Repellents that contain DEET are the most effective,although DEET should not be used on infants. The CDC also recommends products which contain either the chemical Picaridin, found in Cutter Advanced; or products containing the oil of lemon eucalyptus. Alternatives to DEET that can also be effective for a limited duration (1 hour) on the market are: citronella; Avon Skin-So-Soft Plus; Buzz Away, neem oil, and soybean oil. If you need help selecting a repellent, one useful repellent selector tool is available here.