Mosquitoes in two areas of Weld County have tested positive for West Nile virus, though no human cases have yet been reported in the county.

Central Texas' first human West Nile virus case of 2025 reported in Williamson County. Health officials expect more cases because of recent rains and

WILLIAMSON COUNTY, Texas — Health officials have confirmed Williamson County's first human case of West Nile virus this year. The person, who lives in southern Williamson County and is in their 40s, was diagnosed on July 3. Their name will not be released.