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Virus found in Madison County mosquito pool

Posted 7/1/22

The Madison County Health Department announced Thursday a mosquito pool in the county has tested positive for the Jamestown Canyon virus.

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Virus found in Madison County mosquito pool

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SULLIVAN — The Madison County Health Department announced Thursday a mosquito pool in the county has tested positive for the Jamestown Canyon virus. The virus was detected in a mosquito species known to bite humans, officials said, adding the mosquito pool was trapped in the Black Creek area in the town of Sullivan.

Although not common in the region, the virus had been found in mosquito pools in previous years in Madison County and other parts of the state. There was a case of human infection in Madison County in 2013, according to the announcement.

The Jamestown Canyon virus spreads to people from the bite of an infected mosquito. While many people infected with this virus do not have symptoms, those who do may begin to feel sick from a few days up to two weeks after being bitten. Symptoms can include fever, fatigue, and headache. Some people may also experience respiratory symptoms such as cough, sore throat, or runny nose.

In rare cases, the virus may also cause severe disease, developing an infection of the brain (encephalitis) or the membranes around the brain and spinal cord (meningitis). Deaths associated with Jamestown Canyon virus infection are also rare.

County officials say the virus finding is a result of the county’s regular mosquito surveillance program, which routinely collects and tests mosquitoes for diseases.

To prevent mosquito bites, officials urge residents to:

  • Wear long pants, long-sleeved shirts, shoes, and socks when outdoors for a long period of time;
  • Limit outdoor activities between dusk and dawn when mosquitoes are most active;
  • Remove or drain standing water around your home. Throw away or turn over outdoor containers, pots, wheelbarrows, or other items that hold water or place watertight lids on refuse containers. Drill drain holes in recycling containers kept outdoors;
  • Change water in bird baths frequently. Recirculate water in small ponds and ornamental features or apply a mosquito larvacide product appropriate for such use;
  • Clean and maintain rain gutters;
  • Drain wading pools when not in use and water from pool covers. Maintain and keep clean chlorinated swimming pools, outdoor saunas, and hot tubs; and
  • Use landscaping to eliminate low areas where standing water accumulates. Keep lawns mowed and clear vegetation from edges of ponds.

For additional information, call the Madison County Health Department at 315-366-2361 or go online to www.healthymadisoncounty.org or www.cdc.gov/jamestown-canyon/index.html.

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