Health officials urge caution after West Nile virus found in state

WOOD COUNTY – Health officials are encouraging residents throughout the state, including Wood County, to take precautions against mosquito bites after confirming the first human case of West Nile virus this year.
The state Health Department said a Barron County resident has contracted West Nile virus illness, and testing also confirmed the virus in mosquito samples collected from Milwaukee and Lafayette counties.
“The first detections of West Nile virus this year are a reminder to take steps to prevent mosquito bites and possible disease,” said Paula Tran, state health officer and administrator of the Division of Public Health. “West Nile virus poses a risk to all Wisconsinites, but people who have weakened immune systems are at higher risk for serious illness.”
The virus spreads to humans through bites from infected mosquitoes that have fed on infected birds. It cannot spread directly between people or from animals to humans.
Most people infected with West Nile virus show no symptoms. Those who become ill may experience fever, chills, headache, muscle aches, rash and fatigue. Severe cases can include high fever, muscle weakness, stiff neck, disorientation, mental confusion, tremors, paralysis, seizures and coma.

Older adults and people with compromised immune systems face greater risk of severe illness that can prove fatal. Health officials urge anyone suspecting West Nile virus illness to contact a healthcare provider.
Wisconsin averages 18 cases of West Nile virus illness annually among residents. Human cases typically occur from June through November, with most illnesses reported in August and September.
The state has monitored West Nile virus since 2001, tracking confirmed cases in mosquitoes, animals and humans to alert healthcare providers and residents about risk levels.
Health officials recommend several prevention measures:
Avoiding mosquito bites:
• Apply insect repellent containing DEET, picaridin, oil of lemon eucalyptus or IR3535 to exposed skin and clothing
• Treat clothing with permethrin before going outdoors, but do not apply directly to skin
• Consider rescheduling outdoor activities during evening or early morning hours when West Nile virus-carrying mosquitoes are most active
• Wear long sleeves, long pants and socks outdoors
Making homes mosquito-proof:
• Remove standing water from containers around properties, including tin cans, plastic containers, flower pots, discarded tires, roof gutters and downspouts
• Turn over wheelbarrows, kiddie pools, buckets and small boats when not in use
• Change water in bird baths and pet dishes at least every three days
• Clean and chlorinate swimming pools, outdoor saunas and hot tubs; drain water from pool covers
• Ensure window and door screens are intact and properly fitted
• Trim tall grass, weeds and vines where mosquitoes rest during daylight hours