Decreasing the risk of exposure to blood.
D000163:Acquired Immunodeficiency Syndrome / Q000097:blood / Q000635:transmission*; D015658:HIV Infections / Q000097:blood / Q000635:transmission*; D006509:Hepatitis B / Q000097:blood / Q000635:transmission*; D006801:Humans; D010361:Patients; D010564:Personnel, Hospital; D012307:Risk Factors; D012308:Risk Management