by Elio — A re­cent episode of the British TV se­ries 'Doc Mar­tin' dealt with a some­what un­usual bac­terium. Sev­eral chil­dren in the small town in Corn­wall came down with what the good doc­tor thought was im­petigo, a highly con­ta­gious skin in­fec­tion caused by staph or strep. But the lab re­port...