Protection from carriers of hepatitis B.
D002353:Carrier State; D003428:Cross Infection / Q000517:prevention & control* / Q000635:transmission; D004781:Environmental Exposure; D005260:Female; D006509:Hepatitis B / Q000517:prevention & control / Q000635:transmission*; D006801:Humans; D007757:Laboratory Infection / Q000517:prevention & control / Q000635:transmission; D013514:Surgical Procedures, Operative