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West Nile Virus found in county

07/17/2014 03:11PM, Published by ACL, Categories: News, In Print



The Chester County Health Department is informing residents that mosquito samples collected in Uwchlan Township on June 24 have tested positive for West Nile Virus (WNV). 

This is the first positive mosquito sample identified in the county this year. The mosquito traps are placed in various locations in the county as part of routine surveillance by Health Department officials. The Health Department will continue to monitor these areas, as well as surrounding areas, and will consider control activities.

The chance of contracting WNV from an infected mosquito is small and chances of becoming seriously ill are even smaller, however, the Health Department recommends that individuals take precautions to minimize the possibility of being bitten by infected mosquitoes. This includes staying indoors at dawn or dusk, when mosquitoes are most active, wearing long-sleeve shirts and long pants when outside, and using insect repellents when mosquitoes are active. 

Residents are encouraged to take precautions to reduce mosquito breeding on their property: 

– Dispose of open containers that may collect water, such as tin cans, plastic containers, pots, etc. 

-- Drill holes in the bottom of outdoor recycling containers so that water will not collect.

-- Keep your property clear of old tires. 

– Clean roof gutters, particularly if leaves from surrounding trees have a tendency to plug drains. 

– Turn over plastic wading pools when not in use. 

– Turn over wheelbarrows and don’t let water stagnate in birdbaths. 

-- Aerate ornamental pools or stock them with fish. 

– Clean and chlorinate swimming pools when not in use. A swimming pool left untended by a family on vacation for a month can produce enough mosquitoes to result in neighborhood-wide complaints. Mosquitoes may even breed in the water that collects on pool covers. 

– For stagnant pools of water that cannot be removed or drained, homeowners can buy Bti products such as mosquito dunks, at lawn and garden, outdoor supply, home improvement and other stores. This naturally occurring bacterial product kills mosquito larvae but is safe for people, pets, aquatic life and plants. 

For more information, visit www.chesco.org/wnv or call 610-344-6752. 


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chester county health department west nile virus uwchlan township


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