A "flesh-eating bacteria" that kills one in five infected is spreading fast across the US east coast and infiltrating popular beaches as temperatures warm up.
The rare bacteria, 'Vibrio vulnificus', which is commonly found in warm shallow waters above 64C, can infect a cut or insect bite during contact with seawater.
Florida recorded 65 cases last year, which was double the amount compared to previous years, with infections growing from from 10 to 80 per year over the last three decades.
