The Strangles in question is "Atypical Strangles" and has been confirmed at a yard in East Devon at a yard called "Canterbury Farm" which is on the B3180 road just after the Halfway Inn as you travel up to Woodbury Common. Information about it is on Facebook on "The Nutty Nags" group and in other places.
Two horses at Bicton have apparently, during the last week, been under observation and tests and there was a statement issued by them this morning to say that they are "all clear", this will also I guess be on their website too.