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4th Case of West Nile Virus Found, Possible Case in Hampden County

Boston, Mass. (WGGB) — A fourth human case of West Nile Virus has been confirmed in Massachusetts raising the threat level to “High” in Newton and “Moderate” in Needham, Waltham, Wellesley and Weston.

That’s according to the Department of Public Health which reports that a 50 year-old Newton woman was briefly hospitalized for WNV and is recovering.

Health officials are also awaiting confirmation of an additional 6 probable human cases of WNV: four in Middlesex County, one in Hampden County and one in Essex County.

“With today’s announcement, it’s clear that the threat of mosquito-borne illness is present throughout the Commonwealth,” said DPH State Epidemiologist Dr. Al DeMaria. “It’s critically important that people across the state take steps to protect themselves against mosquito bites – especially with the warm temperatures and outdoor activities planned for this long Labor Day Weekend.”

“While we now have a confirmed WNV case in a Newton resident, we have known about positive mosquitoes in Newton since July,” said Dr. Dori Zaleznik, Commissioner of Health and Human Services for the City of Newton. “We continue to urge our residents to take common-sense precautions to prevent mosquito bites by using insect repellent – especially if you need to be out between dusk and dawn.”

WNV infected mosquitoes have been found in 93 communities from nine counties so far during 2012 and health officials predict that the state is on track to have the greatest number of WNV-positive mosquito pools since it was first seen in Massachusetts in 2000. There have been 3 human cases of WNV in Massachusetts prior to Wednesday’s announcement – two in Middlesex County and one in Berkshire County.

There were also 6 cases of WNV in Massachusetts residents and one in a horse last year.

While the virus, which is usually transmitted to humans through the bite of an infected mosquito, can infect people of all ages, people over the age of 50 are at higher risk for severe disease.

However most people infected will have no symptoms. When they are present, the symptoms tend to include fever and flu-like illness. In rare cases, more severe illness can occur.

The following are some ways to protect against illnesses caused by mosquitoes:

Avoid Mosquito Bites

  • Apply Insect Repellent when Outdoors. Use a repellent      with DEET (N, N-diethyl-m-toluamide), permethrin, picaridin (KBR 3023),      oil of lemon eucalyptus [p-methane 3, 8-diol (PMD)] or IR3535 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.
  • 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.
  • Clothing Can Help Reduce Mosquito Bites. Wearing      long-sleeves, long pants and socks when outdoors will help keep mosquitoes      away from your skin.

Mosquito-Proof Your Home

  • Drain Standing Water. Mosquitoes lay their eggs in standing water. Limit the number of      places around your home for mosquitoes to breed by either draining or discarding      items that hold water. Check rain gutters and drains. Empty any unused      flower pots and wading pools, and change water in bird baths frequently.
  • Install or Repair Screens. Keep mosquitoes outside by having      tightly-fitting screens on all of your windows and doors.

Protect Your Animals

Animal owners should reduce potential mosquito breeding sites on their property by eliminating standing water from containers such as buckets, tires, and wading pools – especially after heavy rains.

Water troughs provide excellent mosquito breeding habitats and should be flushed out at least once a week during the summer months to reduce mosquitoes.

Horse owners should keep horses in indoor stalls at night to reduce their risk of exposure to mosquitoes. Owners should also speak with their veterinarian about mosquito repellents approved for use in animals and vaccinations to prevent WNV and EEE.

If an animal is diagnosed with WNV or EEE, owners are required to report to DAR, Division of Animal Health by calling 617-626-1795 and to the Department of Public Health (DPH) by calling 617-983-6800.

More information, including all WNV and EEE positive results from 2012, can be found on the Arbovirus Surveillance Information web page at www.mass.gov/dph/wnv or by calling the DPH Epidemiology Program at 617-983-6800.

 

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WGGB encourages readers to share their thoughts and engage in healthy dialogue about the issues. Comments containing personal attacks, profanity, offensive language or advertising will be removed. Please use the report comment function for any posts you feel should be reviewed. Thank you.
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