Letter: Risk to contacts of a medical practitioner carrying HBs AG.
D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D002353:Carrier State; D003428:Cross Infection; D005194:Family Practice; D006509:Hepatitis B / Q000453:epidemiology / Q000635:transmission*; D006511:Hepatitis B Antigens; D006801:Humans; D008875:Middle Aged; D010820:Physicians; D013557:Switzerland
D006511:Hepatitis B Antigens