The Wisconsin Department of Health Services reported two deaths in eastern Wisconsin and one in northeastern Illinois due to West Nile virus, underscoring the virus's serious health risks.
West Nile virus transmission predominantly occurs through the bite of an infected mosquito, affecting approximately 1 in 5 individuals with symptoms ranging from mild to severe.
While most victims do not show symptoms, approximately 1 out of 150 individuals infected with West Nile virus may develop a serious illness, highlighting the severity of the disease.
Over the years, the prevalence of West Nile virus has steadily increased across the US since its introduction in 1999, with significant outbreaks reported, particularly in 2003.
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