Biological Agents
Brooklyn woman positive for West Nile
By Sue Mueller
Sep 8, 2007 - 11:22:18 AM

Photo-Credit: IDPH

SATURDAY September 8, 2007 (Foodconsumer.org) -- The New York City Department of Health Friday confirmed a 41-year old Brooklyn woman was diagnosed with mosquito-borne West Nile virus (WNV), the first human case in the city for 2007.

Meanwhile, the health department said it had identified WNV in 139 mosquito pools citywide.  Eastern Queens, southeastern Bronx and Staten Island have had significant activity. The virus has been detected in all five boroughs.

The infected woman began feeling ill in mid-August and developed symptoms including fever, headache, fatigue, weakness and muscle pain. She ended up being hospitalized on August 25th, and now is home recovering.  

The city health agency said she may have contracted WNV either in New York City or elsewhere because she traveled outside of the city during the two weeks prior to her illness.

“I urge all New Yorkers – especially those over 50 – to take steps to prevent mosquito bites,” said Dr. Thomas Frieden, New York City Health Commissioner. “Wear mosquito repellent and long pants and sleeves if you’re outside in the evening, and be sure your window screens are intact. These simple steps can help stop the spread of West Nile virus.”

West Nile virus spreads from mosquitoes to humans by a bite of an infected mosquito.   A mosquito becomes infected by biting a bird that carries the virus, which does not seem able to cause much harm to healthy people.   80 percent of infected people do not develop any symptom and the rest develop mild symptoms only.  

However, people at age 50 or older and those who have their immune systems comprised are at a high risk of a serious illness.   The mosquito-borne virus in severe cases can cause encephalitis (inflammation of the brain) or meningitis (inflammation of the lining of the brain and spinal cord).

No case has been reported so far to indicate that WNV spreads from person to person. West Nile virus is not likely spread by person-to-person contact such as touching, kissing, or caring for someone who is infected, according to the city health department.

City health officials advise city residents take steps to protect themselves during West Nile virus season by reducing the presence of mosquitoes in their surroundings, and taking personal precautions to prevent mosquito bites.

To reduce exposure to mosquitoes, the New York City Department of Health suggests the following:

Use an approved mosquito repellent in areas where mosquitoes are active. Repellents containing the active ingredients DEET, picaridin or oil of lemon eucalyptus are approved for use by New York State and the U.S. EPA and for protection against biting mosquitoes. Products containing oil of lemon eucalyptus should not be used on children younger than three. Always read the repellent’s label and follow instructions.

Make sure that windows have screens, and repair or replace screens that have tears or holes to prevent mosquitoes from entering houses. Eliminate any standing water from your property, and dispose of containers that can collect water. Standing water is a violation of the New York City Health Code.

Make sure roof gutters are clean and draining properly.

Clean and chlorinate swimming pools, outdoor saunas and hot tubs. Keep them empty and covered if not in use; drain water that collects in pool covers.