Answer to Question 1
ANS: A
Primary prevention refers to those interventions aimed at preventing the occurrence of disease, injury, or disability. Screening blood products, organs, and tissues for infection protects the pop-ulation from exposure to hepatitis C, which prevents them from contracting the disease. Second-ary prevention includes screening for diseases to ensure their early identification, treatment, and follow-up with contact to prevent further spread. Tertiary prevention focuses on chronic care and rehabilitation. Health promotion focuses on the primary prevention activities to promote health and prevent disease.
Answer to Question 2
ANS: C
The most chronic blood-borne infection in the United States is hepatitis C. Hepatitis A virus is most commonly transmitted through the fecal-oral route. Sources may be water, food, feces, or sexual contact. The hepatitis B virus (HBV) is spread through blood and body fluids and, like HIV, is a blood-borne pathogen. HIV is transmitted through exposure to blood, semen, trans-planted organs, vaginal secretions, and breast milk. Although hepatitis B and HIV are both blood-borne pathogens neither are the most chronic infection like hepatitis C.
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