The area surrounding the positive mosquito batch in Yonkers has been inspected by the health department and nearby catch basins with standing water have been treated to protect against further mosquito breeding in the area.
“We hope confirmation of mosquitoes with West Nile Virus reminds residents to take precautions,” said Westchester County Health Commissioner Sherlita Amler, MD. “The best ways to avoid West Nile, and other mosquito-borne illnesses, are to remove standing water from your property.”
Most people who are infected with West Nile Virus will not show any symptoms. Persons over 50 years of age are at the highest risk for a severe disease.
Favorite mosquito breeding sites include buckets, plant pot saucers, clogged gutters, pet bowls, old tires, as well as children’s pools and toys. Residents should also minimize spending time outdoors at dawn and dusk, and apply insect repellents according to the label directions when enjoying activities outside.
“The presence of West Nile Virus has been a reality in the Hudson Valley for quite some time now, so this positive test is not a surprise,” said Westchester County Executive Rob Astorino. “Nevertheless, it’s a reminder for residents to protect themselves and their families against West Nile Virus and other mosquito-borne illnesses.
"For the county’s part, we have implemented a proactive and comprehensive plan to combat mosquito-borne illness for more than a decade, including advice and resources for our residents.”
The Westchester Department of Health has submitted 243 pools of mosquitoes to the New York State Department of Health for testing with only one positive result this year. The state health department has identified 195 positive mosquito pools throughout the state this year. Symptoms of West Nile encephalitis (a severe infection) usually occur from three to 14 days following the bite and include high fever, headache, confusion, muscle aches and weakness, seizures, or paralysis.
West Nile Virus is not to be confused with Zika. To date, no mosquitoes in New York State have tested positive for Zika and there have been no locally-acquired cases.
As in prior years, the county health department prepared for the 2016 mosquito season by evaluating and treating with larvicide, as needed, all catch basins on county and municipal roads throughout Westchester. In addition to larviciding, the county also gave away free fathead minnows and mosquito dunks to residents this spring. The minnows help to curtail the mosquito population in ponds and water features by feeding on mosquito larvae and pupae before they develop into adult mosquitoes. The mosquito dunks serve the same purpose in birdbaths, rain barrels and unused pools.
In 2015, 17 positive mosquito batches were found in Westchester County with the first positive batch collected around this time. The county has been safely applying larvicide since 2001 to suppress the mosquito population.
Residents who notice large areas of standing water on public property that could serve as potential mosquito breeding grounds should report it to the Westchester County Department of Health by calling 914-813-5000 or emailing firstname.lastname@example.org.
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