Table 3.
Established risk factors |
· Injection drug use |
· Chronic hemodialysis |
· Blood transfusion or transplantation prior to 1992 (HCV) |
· Receipt of blood (including needlestick) from a donor subsequently testing positive for HCV |
· Receipt of clotting factor concentrates produced before 1987 |
· Asian ancestry (HBV) |
· Unvaccinated healthcare workers (HBV) |
· Birth to mother with chronic HBV or HCV |
Possible risk factors |
· Body piercing or tattooing |
· Multiple sexual partners or sexually transmitted diseases |
· Healthcare workers (HCV) |
· Contacts of HCV positive persons |
From CDC (63).