State environmental officials have not found West Nile virus in the latest round of mosquito tests in Rhode Island.
The Department of Environmental Management said Monday that 50 mosquito samples from 24 traps set statewide on Sept. 20 tested negative for West Nile and eastern equine encephalitis.
Two weeks ago, the agency reported the first confirmed human case of West Nile virus in the state this year. The 49-year-old patient was diagnosed with meningoencephalitis caused by West Nile virus. The patient has recovered.
Last month, the agency reported one confirmed finding of West Nile virus and one confirmed finding of EEE in a mosquito sample.
The agency traps mosquitoes weekly and tests them at the state health laboratories. As temperatures cool, mosquito populations will die out and testing will conclude.