UAN safety and health update. Update for UAN affiliates on the Respiratory Protection Standard for TB.
D006801:Humans; D017758:Infectious Disease Transmission, Patient-to-Professional / Q000517:prevention & control*; D007750:Labor Unions; D008119:Lobbying; D009741:Nursing Staff, Hospital; D012134:Respiratory Protective Devices / Q000592:standards*; D014376:Tuberculosis / Q000517:prevention & control* / Q000635:transmission; D014481:United States