Hepatitis B--an avoidable hazard?
D003428:Cross Infection / Q000517:prevention & control*; D006509:Hepatitis B / Q000517:prevention & control*; D017325:Hepatitis B Vaccines; D006801:Humans; D009741:Nursing Staff, Hospital; D009784:Occupational Diseases / Q000517:prevention & control*; D014761:Viral Hepatitis Vaccines / Q000627:therapeutic use
D017325:Hepatitis B Vaccines; D014761:Viral Hepatitis Vaccines