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Epidemiological surveillance of Creutzfeldt-Jakob disease(CJD)in the UK identified 21 patients who had received a blood transfusion and 29 who had donated blood,out of a total of 202 definite and probable cases.This frequency of blood transfusion or donation did not differ from that in age and sex matched controls,and the clinical features in patients with a history of blood transfusion were similar to those of classical CJD and clearly distinct from CJD in recipients of human growth hormone.This evidence does not suggest that blood transfusion is a major risk factor for CJD. |
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