• Sex partners of hepatitis B surface antigen (HBsAg)-positive people

• Sexually active people who are not in a long-term, mutually monogamous relationship (eg, people with more than 1 sex partner during the previous 6 months)

• People seeking evaluation or Treatment for a sexually transmitted infection

• Men who have sex with men

• Current or recent injection-drug users

• Household contacts of HBsAg-positive people

• Residents and staff of facilities for people with developmental disabilities

• Health-care and public safety workers with reasonably anticipated risk of exposure to blood or blood-contaminated body fluids

• People with end-stage renal disease, including predialysis, hemodialysis, peritoneal dialysis, and home dialysis patients

• International travelers to regions with high or intermediate levels (HBsAg prevalence of 2% or greater) of endemic HBV infection (see Table 3.15)

• People with chronic liver disease

• People with human immunodeficiency (HIV) infection

• All other people seeking protection from HBV infection