[A decrease in hepatitis B infections in physicians and nursing personnel].
D006509:Hepatitis B / Q000453:epidemiology / Q000451:nursing* / Q000517:prevention & control*; D006801:Humans; D017758:Infectious Disease Transmission, Patient-to-Professional / Q000517:prevention & control; D016602:Needlestick Injuries / Q000451:nursing / Q000517:prevention & control; D009726:Nurses; D009784:Occupational Diseases / Q000451:nursing* / Q000517:prevention & control*; D010820:Physicians