According to a health alert from the Florida Department of Health, harmful blue-green algae toxins have been detected in the St. Johns River near Racy Point. The alert follows a water sample collected on June 23, 2025.

The Florida Department of Health in Duval County issued a rabies alert Thursday, following the discovery of a rabid cat in the Town Center and UNF area of Jacksonville’s Southside.

An earlier version of this story reported there was one human case of West Nile Virus in Duval County. The Duval County Health Department admitted that was an error in their original release. JACKSONVILLE, Fla. – The Duval County Health Department issued a warning Monday morning: People in Duval County are at a greater risk of contracting the West Nile virus after several sentinel chicken flocks have tested positive for WNV. There are no vaccines to prevent or medications to treat West Nile in people. West Nile Virus may also be referred to as locally acquired dengue.