The Massachusetts Department of Public Health (MDPH) announced today that West Nile virus (WNV) has been detected in a predominantly bird biting species of mosquito called Culex. The Department also announced that Eastern Equine Encephalitis virus had been detected in a mammal biting species of mosquito called Perturbans. In 2011, 4,604 mosquito samples were tested for WNV and 275 samples were positive. Hopkinton had 0 WNV positive mosquito samples identified in 2011 but did have a positive EEE in October.
EEE and WNV are most commonly transmitted to humans by the bite of an infected mosquito. The mosquitoes that carry this virus are common throughout the state, and are found in urban as well as more rural areas.
By taking a few, common-sense precautions, people can help to protect themselves and their loved ones:
Avoid 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. If you are outdoors at any time and notice mosquitoes around you, take steps to avoid being bitten by moving indoors, covering up and/or wearing repellant.
- 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% or less on older children. Oil of lemon eucalyptus should not be used on children under three years of age. Permethrin products are intended for use on items such as clothing, shoes, bed nets and camping gear and should not be applied to skin. .
Mosquito-Proof Your Home
- Drain Standing Water – Many mosquitoes lay their eggs in 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. .
- Install or Repair Screens - Some mosquitoes like to come indoors. Keep them outside by having tightly-fitting screens on all of your windows and doors..
The Hopkinton Board of Health continues to work closely with the MDPH, the Central Massachusetts Mosquito Control Project and other agencies, and will provide further information updates as necessary.
Information about WNV and reports of current and historical WNV virus activity in Massachusetts can be found on the MDPH website at http://www.mass.gov/dph/wnv.