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Connecticut reports its first human West Nile virus case of 2026

A Middlesex County man in his 30s was hospitalized in early August and has recovered, the state Department of Public Health said. Officials say mosquito infection rates are peaking, with the virus found in mosquitoes in 34 towns.

A Middlesex County man has become Connecticut's first confirmed human case of West Nile virus infection in 2026, the state Department of Public Health said Thursday.

The man, who is between 30 and 39 years old, got sick during the first week of August, was hospitalized and has since recovered, according to the department. Lab tests confirmed antibodies to the virus. The department did not identify him or his hometown.

Six human West Nile infections were reported in Connecticut in 2025.

The department said the risk of infection remains elevated, with the Connecticut Agricultural Experiment Station finding the virus in trapped mosquitoes in 34 towns so far in 2026. The first infected batch of mosquitoes was collected in Milford on June 29.

"We are at a peak for the number of mosquitos testing positive for West Nile Virus, and these positive tests are occurring in communities throughout our state," said Dr. Manisha Juthani, the department's commissioner. She urged residents not to assume the risk has passed as summer ends.

Philip Armstrong, a medical entomologist at the experiment station, said the mosquitoes that spread the virus are most common in urban and suburban areas and most active from dusk to dawn. He said the risk is expected to continue into early fall, until mosquito activity drops off in October.

Health officials recommended using insect repellent, wearing long sleeves and pants, limiting time outdoors at dawn and dusk, repairing window and door screens, and emptying standing water from bird baths, gutters, tires and other containers at least once a week.

Most people infected with the virus have no symptoms, the department said. About one in five develop a fever, and about one in 150 develop a severe illness affecting the central nervous system; about one in 10 of those severe cases is fatal. People over 60 face the highest risk of serious illness.

This brief was drafted by AI from a public agency press release and published by The New England Signal. Why we use AI for stories like this one.

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