OH: 2025 La Crosse Encephalitis

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Source: https://www.newarkadvocate.com/stor...two-cases-of-la-crosse-in-newark/86299606007/

Licking County reports two human cases of La Crosse in Newark. Here's what to know
Josué Perez Newark Advocate
2 hours ago

The Licking County Health Department has identified two human cases of La Crosse Encephalitis in Newark.

In a Sept. 22 news release, the department stated that the virus is spread through the bite of an infected mosquito and is rare but serious. Most people who contract the virus experience mild symptoms or are asymptomatic, but in severe cases, people can experience brain inflammation, confusion and long-term neurological complications.​..

...As of Sept. 16, 30 La Crosse virus cases had been reported across eight U.S. States in 2025, according to the CDC. Ohio led the nation in those reported cases.

 

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Source: https://sciotovalleyguardian.com/20...ernal&utm_content=1359071109&utm_term=1713965

Deadly mosquito virus tests positive in Ross Co. resident (No, it’s not West Nile
by Leslie Upton, News Writer
October 2, 2025


CHILLICOTHE, Ohio — Health officials in Ross County have confirmed the first human case of La Crosse virus in 2025, marking an early detection of the mosquito-borne illness. The Ross County Health District (RCHD) reported the case on Wednesday, urging residents to take precautions to prevent further infections...

 

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Source: https://www.morningjournalnews.com/...e-leads-to-rare-viral-illness-for-4-year-old/

Mosquito bite leads to rare viral illness for 4-year-old
Banquet scheduled Saturday will help offset med expenses
Nov 19, 2025
STEPHANIE UJHELYI
Staff Writer​

HANOVERTON — The Ohio Department of Health has documented 50 cases of LaCrosse/California encephalitis (LACV) virus within the state –which is the highest nationally.

Although West Nile virus is its much more common big sister, up to 90 LaCrosse neuroinvasive disease cases are reported each year, according to the Centers For Disease Control (CDC).

The upper midwest, including states like Ohio, have the majority of reported cases followed by Tennessee.

The risk is highest for people who live, work, and recreate in woodland habitats where they potentially could encounter infected Eastern Tree Hole Mosquitoes, which are aggressive daytime-biting mosquito commonly founded in wooded areas.

The community is gathering to assist a 4-year-old Hanoverton girl in her recovery from the disease, which she contracted earlier this year.

Juveniles are commonly the ones who are impacted the most, as healthy adults tend to easily purge the virus with little effort.​..