West Nile Virus Found In MI Mosquitoes: What To Know

KENT COUNTY, MI — A group of mosquitoes near Grand Rapids tested positive for the West Nile virus, the Kent County Health Department said Wednesday.

The positive mosquitoes were found in the 49525 ZIP code, which includes Grand Rapids Township, during surveillance, according to the health department.

Kent County Health Department Supervisor Brendan Earl said the virus was found earlier in the summer than in previous years. The deadly mosquito virus is typically found across Michigan in August.

"(That indicates) a need for heightened vigilance and preventative measures," Earl said in a statement. "It lets us know that this season’s mosquitoes are now carrying the virus, which could spread to humans. It is crucial for people to take precautions to prevent mosquito bites to reduce the risk of infection."

According to the health department, only 20 percent of people affected with the virus will notice symptoms, which include:

• Headache
• Body aches
• Joint pains
• Fatigue

A group of mosquitos in St. Clair County have also tested positive the West Nile virus, prompting health officials to further urge people to take precaution.

Some people who develop an illness may experience mild symptoms such as fever, headache and body aches; occasionally, a skin rash and swollen lymph glands may be noticed. These symptoms may last a few days or as long as several weeks.

People who are older than 50 or have immunocompromised conditions can become seriously ill.

Here are recommendations for avoiding exposure:

• Avoid outdoor activities at dawn and dusk, when mosquitoes are most active.
• Empty any standing water and monitor your yard, clearing watering cans, clogged gutters or discarded containers.
• Wear long pants, long-sleeved shirts and hats outside.
• Use an EPA-registered insect repellent according to package directions.

The discovery of the West Nile virus comes just after officials collected a group of mosquitos in Saginaw County that tested positive for Jamestown Canyon virus earlier this month. As of Wednesday, there have been no confirmed human cases for either virus.

Last year, 24 Michigan residents tested positive for West Nile virus and six tested positive for JCV.