Test Results as of 7/11/01
New In This Update
- Five mosquito pools and three crows have tested positive for WNV. One pool
was collected June 21 in Piscataway (Middlesex County), one June 27 in Parsippany/Troy
Hills (Morris), and three June 29 in Ocean Township (Monmouth). The three
crows were collected June 29 in Merchantville (Camden), West Windsor (Mercer)
and Edison (Middlesex).
Crow, Hawk & Falcon Testing
- To date, 261 birds, mostly crows, have been tested by the Department of
Health and Senior Services' Public Health and Environmental Laboratory. Of
those tested, 19 crows found in Bergen (1), Camden (1), Mercer (1), Middlesex
(12), Monmouth (3) and Morris (1) Counties have been confirmed positive for
the presence of the West Nile virus (WNV).
- To date, 13 mosquito pools collected in Middlesex (3), Monmouth (5) and
Morris (5) Counties have tested positive for the presence of WNV. In total,
734 mosquito pools have been tested.
- In total, 17 residents have been approved for WNV testing and 16 have accepted.
(View list). Blood and/or spinal fluid samples
from these individuals have been or are in the process of being tested for
the presence of WNV. These individuals either had symptoms or signs that met
the established WNV testing criteria or exhibited most of the symptoms and
are from counties where dead crows and/or mosquitoes with the virus have been
- To date, testing has shown that 3 individuals were not infected with WNV
and results are pending for 13 others.
- Human testing for WNV is being conducted at the New Jersey Department of
Health and Senior Services' Public Health and Environmental Laboratory in
Trenton and at public health labs in other states. Testing results are sent
to the CDC for confirmation.
- Doctors of patients with symptoms that do not meet WNV testing criteria
have the option of sending samples of their patients' blood to private laboratories
for analysis using the St. Louis Encephalitis (SLE) screening test. Since
SLE and WNV are closely related viruses, a WNV case will most likely react
to a SLE test. The department has not been notified of any positive SLE tests
- Equine testing is conducted by the New Jersey Department of Agriculture's
animal health laboratory in Trenton and positive results are sent to the National
Veterinary Services Lab (NVSL) in Ames, Iowa for confirmation. For more information,
visit the Department of Agriculture website at www.state.nj.us/agriculture.
Additional Information & Advisories
- New Jersey residents can take personal precautions to minimize their WNV
exposure risk. Such measures include spraying insect repellent on their clothing
and exposed skin in accordance with labeling directions and wearing long sleeved
shirts and pants when outdoors. Residents can also curb outdoor activities
at dawn, dusk and during the evening. Residents should also eliminate standing
water on their own property that can serve as a breeding ground for mosquitoes.
Windows screens should also be used and kept in good repair.
- The West Nile virus, an arboviral disease, is transmitted through the bite
of a mosquito that has picked up the virus by feeding on an infected bird.
WNV is not directly transmitted from birds to humans or from person to person.
WNV infection generally causes no symptoms or just mild, flu-like symptoms;
however, the elderly are at higher risk of more severe disease.
- In 2000, a total of six New Jersey residents became ill and one died due
to WNV infection. The virus was also detected in mosquitoes, horses, crows
and other birds in 20 of the state's 21 counties. The virus was detected for
the first time in the Western Hemisphere in September 1999, in birds found
in New York City and Westchester County.
- New Jersey's WNV surveillance, control and prevention activities involve
the coordinated efforts of a number of federal, state and local agencies.
These include the New Jersey Departments of Health and Senior Services, Environmental
Protection, and Agriculture, the federal Centers for Disease Control and Prevention
(CDC), the State Mosquito Control Commission, the Rutgers Mosquito Research
and Control Unit, and local health and mosquito control agencies.
- For more information on WNV, visit the New Jersey State homepage at www.state.nj.us
and click on West Nile Virus.