MUSKEGON COUNTY HEALTH DEPARTMENT
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Muskegon County Health Department West Nile Virus Surveillance
What is West Nile Virus?
West Nile virus is a mosquito-borne virus that can cause swelling of the brain (encephalitis) or
swelling of the lining of the brain and spinal cord (meningitis). West Nile virus is spread to humans
primarily by the bite of an infected mosquito. Mosquitoes become infected with West Nile virus
when they feed on sick birds that carry the virus in their blood. Crows are very susceptible to
infection with West Nile virus and will die within two to three weeks of exposure. Therefore the
presence of dead crows is the best way to predict if West Nile virus is in an area. West Nile virus
was first detected in Muskegon County in a bird in 2001, and in a human in 2002.
During , the presence of West Nile virus (WNV) will be confirmed through testing of dead birds in
each zip code. Once a particular zip code receives a confirmed positive for the virus, no more
samples from that zip code will be tested. The Health Department will submit the birds to the State
of Michigan for testing. No testing is performed at the Health Department.
What kinds of birds should be reported?
report recently dead Corvid species. Corvid species include the following birds;
and Blue Jays.
Birds Commonly Mistaken for Corvids:
•Red winged Blackbird-
Male is black with reddish-orange shoulder stripe. Brown-Headed
Male has metallic green/black body with brown head.
Male appears all black, but has iridescent purple head, neck and breast,pale yellow eyes, common throughout Michigan.
Black with iridescent green and purple has white spots on head andbody, which are most evident during fall.
Male is black, with iridescent purple around head and neck, iridescentgreen on body and wings; eyes are yellow, Michigan summer breeding range is Western UPand Northern Lower, rare
but may be seen south of range in spring.
How do I report a dead bird?
Reports can be filed online at or by Calling Muskegon County
Vector Control at 724-6007
Do not touch the bird.
Vector Control will provide you with instructions.
Only those birds which are recently
dead (appear to have died within the last 48 hours), with noevidence of decomposition (noxious odor; presence of small, white fly larvae (maggots) or predatortrauma (open body cavities, exposed muscles) will be accepted for testing.
How to Dispose of a Dead Bird or Mammal
A dead bird or mammal should be buried or disposed of in your garbage. Always avoid barehanded
contact when handling dead animals.
If gloves are not available, Y04 may turn a plastic shopping
bag inside out and scoop up the specimen with the bag.
Prevention of W est N ile Virus: W hat can you do?
Q. What can I do to reduce my risk of becoming infected with West Nile virus?
A. Here are preventive measures that you and your family can take:
Protect yourself from mosquito bites:
•Apply insect repellent to exposed skin. Generally, the more active ingredient a repellentcontains the longer it can protect you from mosquito bites. A higher percentage of activeingredients in a repellent do not mean that your protection is better-just that it will lastlonger. Choose a repellent that provides protection for the amount of time that you will beoutdoors.
NRepellents may irritate the eyes and mouth, so avoid applying repellent to the handsof children.
NWhenever you use an insecticide or insect repellent, be sure to read and follow. themanufacturer's DIRECTIONS FOR USE, as printed on the product.
•Spray clothing with repellents containing permethrin or another EPA-registered repellentsince mosquitoes may bite through thin clothing. Do not apply repellents containingpermethrin directly to exposed skin. Do not apply repellent to skin under your clothing.
•When weather permits, wear long-sleeved shirts and long pants whenever you are outdoors.
•Place mosquito netting over infant carriers when you are outdoors with infants.
•Consider staying indoors at dawn, dusk, and in the early evening, which are peak mosquitobiting times.
•Install or repair window and door screens so that mosquitoes cannot get indoors.
Help reduce the number of mosquitoes in areas outdoors where you work or play, by drainingsources of standing water. In this way, you reduce the number of places mosquitoes can lay theireggs and breed.
•At least once or twice a week, empty water from flowerpots, pet food and water dishes,birdbaths, swimming pool covers, buckets, barrels, and cans.
•Check for clogged rain gutters and clean them out.
•Remove discarded tires, and other items that could collect water.
•Be sure to check for containers or trash in places that may be hard to see, such as underbushes or under your home.
What Are the Symptoms of WNV?
•Serious Symptoms in a Few People.
About one in 150 people infected with WNV will
develop severe illness. The severe symptoms can include high fever, headache, neck
stiffness, stupor, disorientation, coma, tremors, convulsions, muscle weakness, vision loss,
numbness and paralysis. These symptoms may last several weeks, and neurological effects
may be permanent.
•Milder Symptoms in Some People.
Up to 20 percent of the people who become infected
have I symptoms such as fever, headache, and body aches, nausea, vomiting, and sometimes
swollen lymph glands or a skin rash on the chest, stomach and back. Symptoms can last for
as short as a few days, though even healthy people have become sick for several weeks.
•No Symptoms in Most People.
Approximately 80 percent of people (about 4 out of 5) who
are infected with WNV will not show any symptoms at all.
Sources: CDC, Michigan DNR, Muskegon County Health Department.
For more important information on how you can protect yourself and your family via the web,
UROLOGISCHE GEMEINSCHAFTSPRAXIS und BELEGABTEILUNG an der EuromedClinic, Fürth ÜBERÖRTLICHE GEMEINSCHAFTSPRAXIS FÜR UROLOGIE und BELEGABTEILUNG am St. Theresienkrankenhaus, Nürnberg Ärztl. Mitarbeiter Dr. Ekkehardt Bismarck, Arzt für Urologie Dr. Birgit Beiche, Ärztin für Urologie Dr. (Univ. Varna) Orlin Savov, Arzt für Urologie Frau Sabine Zaun, Organisation and Development
El desarrollo de las personas como herramienta de gestión Las reflexiones que deseo proponerles toman en cuenta el valioso contenido del documento publicado por UNIAPAC: “La rentabilidad de los valores. Una vision cristiana de la Responsabilidad Social Empresarial.” Puesto que “estrictamente hablando, la “Responsabilidad” puede ser solamente aplicada a las personas, y no a cualquie