Bay County's mosquito season just got real. Mosquito samples collected by Bay County Mosquito Control have tested positive for both West Nile virus and Jamestown Canyon virus, prompting crews to ramp up larval control and targeted nighttime fogging. Officials are again urging residents to dump standing water and guard against bites. Health authorities note that most infections cause no symptoms or only mild, flu like illness, but in rare cases the viruses can trigger serious neurological disease.
Confirmed detections
Bay County Mosquito Control confirmed the season's first evidence of West Nile virus and Jamestown Canyon virus in mosquito samples, according to Cars 108. The positive samples come on the heels of heavy rainfall and localized flooding that have left pockets of standing water scattered across the county and surrounding region. County and vector officials told the station they expect mosquito numbers to climb over the next two to three weeks as those waterlogged breeding sites produce fresh waves of biting adults.
County response
In response, Bay County Mosquito Control says crews will be out treating mosquito breeding sites across the county and carrying out targeted nighttime fogging runs to knock down adult mosquitoes, according to Bay County Mosquito Control. The department is also asking residents to report dead crows and blue jays for possible testing and to call 989‑894‑4555 with questions or to request an inspection. Horse owners are being urged to double check that vaccinations against West Nile virus and Eastern equine encephalitis are current.
Statewide picture
The Michigan Department of Health and Human Services' latest weekly arbovirus summary reported mosquito pools positive for West Nile virus in Kent and Ottawa counties and a Jamestown Canyon virus positive pool in Kent County, underscoring that virus activity is not just a Bay County problem, according to the state's arbovirus summary. The report noted that no human cases had been identified as of its most recent update but advised continued vigilance. Local detections do not mean an outbreak is imminent, yet they are a clear signal that common sense precautions are worth taking.
Symptoms and risk
Most people infected with West Nile virus never realize it. When illness does develop, it usually looks like a mild viral bug, with fever, headache and fatigue, according to the Centers for Disease Control and Prevention. In a small fraction of cases, the virus can invade the nervous system and cause meningitis or encephalitis. The CDC and local health officials recommend using EPA registered mosquito repellents and cutting back on outdoor activities at dawn and dusk, when mosquitoes are most active. Anyone who develops high fever, severe headache, neck stiffness or confusion after possible mosquito exposure should get medical care promptly.
How to protect yourself
County officials are reminding residents to treat their yards like part of the mosquito control grid by getting rid of standing water in bird baths, buckets, flower pots, old tires and kiddie pools, and by changing water in any containers at least once a week so larvae do not have time to mature, according to Bay County Mosquito Control. CDC guidance also advises wearing long sleeves and long pants when possible and using an EPA approved insect repellent that contains DEET, picaridin or oil of lemon eucalyptus. The recent surge in mosquitoes following heavy rains has already pushed vector teams into more intensive larval and adult control work, WCMU Public Media reports.
Officials say the risk to the average resident remains low, but the county's latest detections are a timely reminder that mosquito season is fully underway. For updates or to report dead birds or standing water concerns, contact Bay County Mosquito Control at 989‑894‑4555 or visit the county's mosquito control pages for current advisories. County crews plan to keep up surveillance and treatments as the season unfolds.
