WHO TO TEST FOR CHRONIC HBV INFECTION. In all settings (and regardless of whether delivered through facility- or community based testing), it is recommended that HBsAg serological testing and linkage to care and treatment services be offered to the following individuals:

• Adults and adolescents from populations most affected by HBV infection

(i.e. who are either part of a population with high HBV seroprevalence or who have a history of exposure and/or high-risk behaviours for HBV infection);

• Adults, adolescents and children with a clinical suspicion of chronic viral

hepatitis (i.e. symptoms, signs, laboratory markers);

• Sexual partners, children and other family members, and close household

contacts of those with HBV infection;

• Health-care workers: in all settings, it is recommended that HBsAg serological

testing be offered and hepatitis B vaccination given to all health-care workers who have not been vaccinated previously (adapted from existing guidance on hepatitis B vaccination)