Mosquito Pool Found in Pottstown Tests Positive for West Nile

It's the first positive West Nile Virus result in the county this season.

According to a release issued by Montgomery County, the (MCHD) was notified that one mosquito pool tested positive for West Nile Virus (WNV) in Pottstown. The test was confirmed by the Pennsylvania Department of Health Bureau of Labs. This is the first report of a WNV-positive mosquito pool in Montgomery County for 2012.

MCHD has had 48 mosquito pools tested for WNV, with one testing positive. No confirmed human cases of active WNV Disease have been reported to MCHD. A mosquito pool is a collection of mosquitoes (usually about 50) of any given species or group (i.e. Culex mosquitoes) that are likely to carry/transmit a virus.

MCHD will enhance existing larvae and adult mosquito collections in the area where the WNV positive mosquito pool was found. Additional controls will be taken as needs are identified.

MCHD will announce when spraying for WNV will occur. Residents can also receive information about spraying by signing up for ReadyNotifyPA.

For 2011, Montgomery County had a total of 809 mosquito pools tested with 50 pools testing positive for WNV. There were no confirmed human cases of West Nile Disease reported.

Reduce Your Risk of Contracting West Nile Disease

To reduce the risk of contracting West Nile Disease here are some steps residents can take:

  • Make sure gutters and drainpipes are clean and running freely.
  • Check and repair windows and screens to prevent mosquitoes from entering the home.
  • Survey property and remove containers that collect standing water such as: old tires, cans, bottles, buckets, toys, kiddie pools, pool covers, bird baths, flowerpots and empty plant containers.
  • Avoid mosquito-breeding areas during peak periods of mosquito activity.
  • Wear long-sleeved shirts and long pants, making sure to cover feet and ankles.
  • Apply insect repellent sparingly to exposed skin. FOLLOW THE LABEL DIRECTIONS CAREFULLY. Do NOT apply to face.
  • NEVER ALLOW CHILDREN TO APPLY REPELLENTS. Parents should avoid applying repellents to the hands of children
  • Repellents should NOT be applied to very young children (less then 3 years old).
  • Discuss any concerns with a private physician.

Since 2006 MCHD has not been collecting dead birds, or dead bird reports. While dead bird surveillance has been a useful indicator in the past, the presence of the virus is now well-established in Montgomery County. Because West Nile virus is spread to humans through infected mosquitoes, not birds, our program is focused on preventing and controlling mosquitoes.

Residents may still report a dead bird by going to the Pennsylvania West Nile website.

For more information on WNV disease please contact the Montgomery County Health Department 610-278-5117 or visit the Montgomery County Health Department website.

Tiny Betron May 25, 2012 at 08:11 PM
You know I reported a local problem last year to this agency about a pool that has not been maintained in three years and I’m sure is breading this disease. I’m afraid to take out my exotic birds in fear of contracting the West Nile Virus. The pool is still open and it is unbearable to sit outside at night. Nothing was ever done about this pool; I wonder how many others are out there? I guess the reduced risk publications are just to let us know of the dangers but too actually get some action on a mater is a whole different story?
Mike May 26, 2012 at 11:25 AM
Pools can be treated with simple kitchen vegatable oil. The oil prevents the larvae in the water from breathing and new eggs from being deposited by females. The amount of oil depends on the size of the pool, but only a thin layer is needed and the oil will dissipate over time. A safe and chemical free solution.
Chuck a couple of mosquito dunks in.
Louise May 27, 2012 at 01:10 PM
There are so many opportunities for mosquitoes to breed - so you must prevent what you can and repel what makes it through. The very best repellent for mosquitoes I have ever found is Greenbug. It is natural, safe and it WORKS! www.greenbugallnatural.com


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