West Nile Virus Found In Worcester Mosquitoes

WORCESTER, MA —Worcester mosquitoes tested positive for West Nile Virus, according to the Massachusetts Department of Public Health. No human cases of West Nile have been reported.

The city's public health department is coordinating with the Central Massachusetts Mosquito Control Project (CMMCP) to spray a designated areas Tuesday, Aug. 20 (Plantation St./Hamilton St. area – spray map) after sunset, up until midnight.

If you live nearby the spraying areas, here are some tips to follow:

• Close street facing windows and keep pets inside between sunset and midnight if possible to allow a more thorough application. This type of pesticide is similar to ones used for flea and tick control.
• Remain inside during the application and for 15-20 minutes afterwards.
• Accidental exposure is not expected to cause any health concerns in most people.
• No precautions are needed the day after the application as all residues will have evaporated.
• Residents with gardens are advised to wash off vegetables before consuming them.
• There is no need to cover pools as the spray is an oil-based product and will dissipate quickly.
• Any “outside air” controls on older window unit air conditioners should be turned off.

West Nile is most commonly transmitted to humans by the bite of a mosquito infected with the virus. While West Nile can infect people of all ages, people over the age of 50 are at higher risk for severe infection.

The city is urging the public to practice the Five D’s of prevention: Avoid being outdoors during DAWN and DUSK, when mosquitoes are most active; DRESS in long-sleeved clothing; use insect repellent with DEET; and DRAIN any standing water from around your home.
Tips for Avoiding Mosquito Bites:

• Be Aware of Peak Mosquito Hours - The hours from dusk to dawn are peak biting times for many mosquitoes. Consider rescheduling outdoor activities that occur during evening or early morning. Otherwise, take extra care to use repellent and protective clothing.
• Clothing Can Help reduce mosquito bites. Although it may be difficult to do when it’s hot, wearing long-sleeves, long pants and socks when outdoors will help keep mosquitoes away from your skin.
• Apply Insect Repellent when you go outdoors. Use a repellent with DEET (N, N-diethyl-m-toluamide), permethrin, picaridin (KBR 3023), IR3535 or oil of lemon eucalyptus [p-methane 3, 8-diol (PMD)] according to the instructions on the product label. DEET products should not be used on infants under two months of age and should be used in concentrations of 30 percent or less on older children.

Mosquito-Proof Your Home:

• Drain Standing Water - Limit the number of places around your home for mosquitoes to breed by either draining or getting rid of items that hold water. Check rain gutters and drains. Empty any unused flowerpots and wading pools, and change water in birdbaths frequently. All property should be maintained to prohibit the formation of stagnant pools of water, which may attract and harbor mosquitoes and other insects. Properties with these conditions can be reported to the Department of Inspectional Services via the City’s customer service center at 508-929-1300.
• Install or Repair Screens - Keep mosquitoes outside by having tightly-fitting screens on all of your windows and doors.