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Another person in Maine sickened by the rare Powassan virus
Maine confirms its third case of the rare, tick-borne Powassan virus this year amid reports of a recent fatality.
West Nile Virus
9 independently sourced, verified trend briefs about this subject.
What this topic page includes
Newsylist includes a story here only after at least four independent sources support it and its brief passes the verification check. The qualifying coverage spans 1 news category, from Jul 1, 2026 through Jul 23, 2026.
The cards below are ordered newest first. Each opens the underlying timeline, source list, coverage velocity and verification context; raw or extractive-only records are excluded.
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West Nile virus detected in South Carolina mosquitoes
Public health agencies are reporting the detection of West Nile virus in local mosquito populations across multiple counties.
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West Nile virus found in Oregon for first time in 2026; health officials advise precautions
Health officials are issuing precautions after West Nile virus was detected in Oregon for the first time in 2026.
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Dead crow cues 'wake-up call' for California's most serious mosquito-spread disease
A surge in West Nile virus cases across 23 U.S. states and reports of dead crows in California signal an early onset of the mosquito-borne illness.
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Only 1 Connecticut town has detected West Nile virus every year for the past 5 years
Milford is the only Connecticut town to detect West Nile virus every year for the past five years.
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Urgent warning as brain-swelling disease surges in multiple Southern California neighborhoods
Health warnings are escalating as West Nile virus surges in Southern California and reaches a 22-year high in New Jersey.
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CDC urges people to prevent mosquito bites as West Nile virus season hits a strong, early start
The CDC is warning of a record-breaking start to the West Nile virus season as cases emerge across multiple states.
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West Nile virus detected in southern state as health officials warn residents about mosquitoes
Health officials are issuing warnings after the first 2026 human cases of West Nile virus are confirmed in Mississippi and Tennessee.
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West Nile virus detected in Grant County, officials urge community to take caution
West Nile virus detected in Grant County, prompting community caution