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Thank you for all your answers, a lot to think about. All I know of the person involved is that he now has very inflamed lymph nodes and feels very unwell.He has seen a consultant , has had blood tests -results pending-- and the consultant told him it could be this obscure illness, but he cannot remember what it was, shocked maybe ,I really don,t know.
Has to return in 3 weeks to the hosp.
Will keep you posted.Brenda.