EAST PROVIDENCE, R.I. (WPRI) — Health and environmental officials in Rhode Island and Massachusetts are reminding people to keep protecting themselves from mosquito bites, as the risk of transmitted diseases remains. Both states on Friday announced two additional cases of West Nile virus. The R.I. Department of Environmental Management (DEM) said a Providence County resident in their 50s and a Newport County resident in their 60s have been identified as "probable cases." That brings the yearly total to three confirmed cases of the virus and three probable cases. The last round of statewide mosquito testing yielded no positive findings of West Nile virus or eastern equine encephalitis (EEE), according to the DEM. In Massachusetts, the Department of Public Health (DPH) reported two additional cases of West Nile virus, bringing the total to 15 cases on the year. The DPH said one is a woman in her 60s who was likely exposed in Middlesex County and the other is a woman in her 70s who was likely exposed out of state. While mosquito activity decreases as the temperature falls, the threat of mosquito-borne illnesses doesn't diminish until the first hard frost, or three consecutive hours below 32 degrees. Until then, people should continue to take precautions, which include limiting time outdoors from dusk until dawn, using bug spray, and wearing loose-fitting, long-sleeved shirts and pants. EEE, West Nile virus: The symptoms and how to protect yourself Locations are not exact and are meant to illustrate findings by community. Source: RI DEM/RI DOH, MA DPH Close Thanks for signing up! Watch for us in your inbox. Subscribe Now Daily Roundup SIGN UP NOW