Nebraska health officials have confirmed the state’s first human case of West Nile virus for 2026, marking the beginning of the season’s mosquito-borne illness activity.

The Nebraska Department of Health and Human Services announced Monday that the infection was identified within the North Central District Health Department’s jurisdiction.

As temperatures rise, officials are urging residents to protect themselves and their families from mosquito bites, emphasizing that West Nile virus tends to spread more during the summer months.

Dr. Sydney Stein, the state epidemiologist for DHHS, reminded the public that preventive measures are key to avoiding illness.

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“Since there is no vaccine or specific medicine to treat West Nile virus, it is important for Nebraskans to take preventive steps to reduce their risk of mosquito-borne illness and enjoy their summer safely,” Stein said.

According to DHHS, West Nile virus is the leading cause of mosquito-borne disease in the United States. Nebraska has historically reported higher levels of infection compared to many other states.

The virus spreads through the bite of an infected mosquito that has fed on an infected bird. Health experts noted that West Nile virus cannot be transmitted directly from sick or dead birds to people.

Most individuals infected with the virus experience no symptoms or mild, flu-like signs. However, the department reported that fewer than one percent of those infected may develop severe illness.

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Adults age 50 and older, along with those who have weakened immune systems, are at greater risk for complications related to the virus.

To help reduce mosquito exposure, DHHS has provided several safety recommendations.

Residents are encouraged to use repellents containing DEET, picaridin, lemon eucalyptus oil, or IR3535 when outdoors. Long clothing such as long-sleeved shirts, pants, and socks can also limit exposure to bites.

Health officials advise people to take additional care during early morning and evening hours, when mosquitoes are most active. Removing standing water from around homes is another important step.

DHHS recommends emptying and refilling bird baths, fountains, wading pools, rain barrels, and flower pot trays at least once a week to interrupt mosquito breeding.

Lawns and gardens should be watered carefully to prevent puddles from forming for several days, as stagnant water creates mosquito habitats.

Residents are also urged to check homes for potential entry points by ensuring that window and door screens are tightly fitted and repairing any tears that could allow insects inside.

As West Nile virus activity increases in the state, public health officials continue to emphasize awareness and prevention as the most effective strategies to stay safe through the summer.