A mosquito pool (batch of mosquitoes) sampled by the Southlake Mosquito Abatement District on June 28 in Highland Park, Illinois has tested positive for West Nile virus. The mosquito pool is the first confirmed indicator of West Nile presence in Lake County in 2018.
“In 2017, there were six human cases of West Nile virus confirmed in Lake County,” said Mark Pfister, Executive Director for the Lake County Health Department and Community Health Center. “Residents need to take action, practicing the 4 Ds of Defense to protect themselves from mosquito bites.”
Practice the “4 Ds of Defense” to protect yourself and your family from mosquitoes:
- Drain: Drain standing water from items around your home, yard, and business.
- Defend: When outdoors, use an insect repellent containing DEET, picaridin, oil of lemon eucalyptus, 2-undecanone, or IR3535 and reapply according to label directions.
- Dawn and Dusk: Protect yourself all day and night, and wear repellent outdoors during these prime times for mosquito activity.
- Dress: Wear long sleeves, pants, and closed toe shoes when outdoors to cover your skin.
“Culex pipiens mosquitoes, which are the primary carriers of West Nile virus, are most abundant in mid- to late summer, when the weather is hot,” said Michael Adam, Senior Biologist for the Health Department. “Residents can help prevent these mosquitoes from breeding by eliminating areas of stagnant water from their properties – items like buckets, gutters and plant containers, kiddie pools, and any other items holding water around homes and businesses – can become breeding sites.”
The Lake County Health Department’s Mosquito Surveillance Program coordinates mosquito trapping results throughout Lake County. Mosquitoes are tested weekly for West Nile virus. The program also monitors reports of dead birds (an early sign of the presence of the virus) and investigates areas of stagnant water for the presence of mosquito larvae, specifically from the Culex mosquito, which is the primary carrier of West Nile in Illinois.
In 2017, 104 pools or batches of mosquitoes and one bird tested positive for West Nile virus. Since 2002, there have been 64 confirmed human cases of West Nile virus in Lake County, as well as two confirmed deaths.
Most people infected with West Nile virus have no symptoms of illness. However, some may become ill usually three to 15 days after the bite of an infected mosquito. Common symptoms include fever, nausea, headache and muscle ache. In some individuals, severe illness including meningitis or encephalitis, or even death, can occur. People older than 50 and individuals with weakened immune systems are at higher risk for severe illness from West Nile virus.
Find more prevention tips and information on West Nile virus at www.FightTheBiteNow.com. Residents can also call the Health Department’s West Nile hotline to report areas of stagnant water, report locations of dead birds, and obtain more information on the signs and symptoms of West Nile virus. The West Nile hotline number is (847) 377-8300.