PROVIDENCE, Rhode Island — State environmental officials say the final batch of mosquitoes to be tested this year have come back negative for West Nile virus.
The Rhode Island Department of Environmental Management said Tuesday that all 31 mosquito samples from 24 traps set across the state on Sept. 22 were clear of West Nile and eastern equine encephalitis.
Officials say no traps have been set since then because of the small number of mosquitoes collected during the month. The number of mosquitoes dwindles naturally at this time of year.
West Nile was found in two mosquito samples this year, both from South Kingstown. Eastern equine encephalitis was not found in Rhode Island mosquitoes this season.
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