RIDOH Confirms a Case of Rare Tick-Borne Viral Infection (Powassan)

Published on Monday, September 21, 2026

The Rhode Island Department of Health (RIDOH) is reporting a confirmed case of the tick-borne Powassan virus disease (Powassan) detected in a Rhode Island resident. This resident is a male in his 60s who lives in Washington County. He began experiencing symptoms of Powassan in late August.   

“We all need to be thinking about tick prevention measures when outdoors,” said Director of Health Jerry Larkin, MD. “Repel and reduce your exposure to ticks, check your body for ticks, and be sure to remove ticks if you find one on yourself, a family member, or a pet. Ticks are tiny. You may not be able to feel them or spot them right away. The sooner you find and remove them, the better your chances are at preventing the serious health issues caused by illnesses like Powassan and Lyme Disease.”    

This is Rhode Island’s third case of Powassan in 2026 and the eleventh case overall since it was first reported in Rhode Island in 2016. Powassan is a tick-borne disease that is found mostly in the Northeast and the Great Lakes region of the United States and in eastern Canada. Over 397 cases of Powassan have been reported in the US in the past 10 years (2016-2025). Powassan cases are rare, but the reported number of cases has increased in recent years. In 2025, there were 76 cases reported nationwide, which represented the most Powassan cases ever in a year. That year, there were 27 cases of Powassan reported in New England: 12 cases in Massachusetts, 6 cases in Maine, 5 cases in Connecticut, and 4 cases in New Hampshire.   

Initial symptoms of Powassan include fever, headache, vomiting, and generalized weakness. The disease usually progresses to meningoencephalitis, which may include meningeal signs, altered mental status, seizures, aphasia (difficulty understanding or speaking), paresis (muscular weakness or paralysis), movement disorders, or cranial nerve palsies. People with severe Powassan disease often need to be hospitalized. There is no vaccine or treatment for Powassan, so preventing exposure to ticks is the best strategy to avoid this disease.   

Rhode Islanders should take steps to prevent tick-borne diseases, including Powassan and Lyme Disease, when spending time outdoors. In mid-March, RIDOH will launch its annual tick safety campaign with prevention messages featured on television, radio, and social media. The Tick Free Rhode Island campaign highlights the 3 keys to tick safety: repel, check, and remove.   

Repel – Keep ticks off you, your children, and pets.   

• Avoid wooded and brushy areas with high grass and leaves. If you are going to be in a wooded area, walk in the center of the trail to avoid contact with overgrown grass, brush, and leaves at the edges of the trail.  
• Wear long pants and long-sleeve shirts when outside.   
• Tuck your pants into your socks so ticks do not crawl under your clothes.   
• Use an EPA-approved bug spray with the active ingredient DEET (20-30% strength) on your skin or clothes. Check the product label to find the concentration of DEET in a product. (Do not use bug spray with DEET on infants younger than age 2 months. Repellents should contain no more than 30% DEET when used on children. Children should be careful not to rub their eyes after bug spray has been applied to their skin. Wash children’s hands with soap and water to remove any bug spray when they return indoors.)   
• Wear light-colored clothing so you can see ticks more easily.   

Check – Check yourself, your children, and pets for ticks.   

• Take a shower as soon as you come inside if you have been in grassy or wooded areas.   
• Do a full-body tick check using a mirror. Parents should check their kids for ticks and pay special attention to the area in and around the ears, in the belly button, behind the knees, between the legs, around the waist, and in their hair.    
• Check your pets for ticks as well because they can bring ticks into the home.   

Remove – Remove ticks from your body, and from children and pets, if you find them.   

• Use a set of tweezers to remove the tick.   
• Grasp the tick as close to the skin as possible and pull straight up.    
• If you don't have tweezers, use your fingers with a tissue or rubber gloves.   

For more information on Powassan, Lyme disease, and other tick-borne diseases, visit health.ri.gov/ticks.