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Slide 24


    Title: HBV and HCV Pose an Even Greater Risk Then HIV
    Type: Title Slide

    Source: Centers for Disease Control and Prevention, 1991

    Speaker Notes:

    The risk of transmission of HBV and HCV through percutaneous injury is much higher than for HIV (CDC, 1991) for several reasons.

    First, Hepatitis B and C live longer than HIV once the virus is exposed to air. In fact, Hepatitis B can survive for at least a week in a drop of dried blood, while the AIDS virus will survive only 24 hours.

    Second, the concentration of virus in a single drop of blood is generally much higher in HCV and HBV than in HIV. Finally, the prevalence of HCV, in particular, is higher in the general population than HIV. Understanding the prevalence of these bloodborne diseases in the patient population gives a better picture of the risk health care workers face.