Health officials have confirmed a second locally acquired human case of West Nile virus in Duval County, and the Florida Department of Health is again coordinating ground spraying with Jacksonville Mosquito Control. The department announced the case on Tuesday, September 15, as reported by News4Jax, about two weeks after confirming the county's first on August 31.
Locally acquired is the phrase that should register with Jacksonville households. It means the patient was infected by a mosquito inside the county rather than while traveling. Two such cases in roughly two weeks indicate infected mosquitoes are circulating locally, a different situation from an imported case that carries no onward risk.
