OPINION: Guessing...
I wonder if they came in to be treated and have symptoms of....(fill in the blank at this time).
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ON THE NET...
GOOGLE - SEARCH NEWS by date - TERM: "STAFFORDSHIRE"
http://news.google.com/news?hl=en&ned=us&q=Staffordshire&ie=UTF-8&scoring=d
The problem is, they haven't yet been able to fill in the blanks on the illness...