Hotspots for a rare tick-borne disease that kills up to one in ten sufferers have been revealed for the first time.
A study by the Yale School of Public Health found that Powassan virus, dubbed ‘Lyme disease’s deadly cousin’, is being detected in clusters in Connecticut, New York State and Maine.
Powassan virus is rarely diagnosed — just a few dozen cases are detected each year — because the majority of people who contract the virus are asymptomatic.