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The
Pike County Commissioners recruited the help of Cooperative
Extension and requested that the Pike County office act as the
coordinating agency for the countywide program. The program
had two main focuses, that of surveillance and if needed, control.
A preliminary grant of $15,000 was received to fund a surveillance
program. When a positive mosquito pool was identified in close
proximity to Pike County, additional funds of $102,000 were
requested and received in case control measures needed to be
taken.
To meet
the increasing needs of the program two field technicians were
hired to be the actual hands-on workers for the
program. Their main responsibility was to visit possible sites,
meet with property owners and to set and monitor light and gravid
traps. Samples were then sent to an analysis lab to determine
if these mosquitoes carried the WNV. Samples were taken from
all townships in Pike County and from many of the residential
communities. Over 400 samples were taken in Pike County.
They
also worked closely with the National Park Service to determine
areas to set up traps within the Park and with the regional
DEP in Swiftwater. Additionally, summer camps and sewer plants
were visited to investigate possible breeding sites. By the
end of the mosquito breeding season, most waste water treatment
plants had been visited and the operators of these facilities
had been educated in regards to the prevention of mosquito breeding.
When
the program started in April 2000, it was thought that only
one species of mosquito, the Culex pipiens, carried the virus.
To date, there are at least 13 types of mosquitoes that have
been identified as being able to carry WNV. By early fall WNV
was also identified as being found in crows in PA and pools
of mosquitoes were identified as positive specimens in about
19 counties in Pennsylvania.
One
location in Pike yielded positive mosquitoes in mid October.
Control measures had been taken at that location since mid-summer
and the DEP came to Pike to help larvicide again after the positive
results.
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