The Rhode Island Department of Environmental Management has announced that mosquitoes trapped recently tested positive for eastern equine encephalitis and West Nile virus.
The positive tests were found in Westerly during the latest round of trapping on Sept. 3. The state had collected 116 samples from 28 traps.
Rhode Island health officials said on Monday a resident died of the EEE virus , the state's first fatal human case of the mosquito-borne virus since 2007.
The agency sprayed Chapman Swamp, along parts of Hopkinton and Charlestown, on Tuesday.
The latest positive mosquito tests were the fifth in the state for the EEE virus and the second for West Vile virus.