Hepatitis B

This chapter describes an acute hepatitis B case and scenario involving a paramedic with a pregnant woman as close sexual contact and potential risk of transmission to the unborn baby. Background information on the epidemiology of Hepatitis B, markers of hepatitis B infection (both acute and chronic), and the risk factors for transmission are discussed. There are clear case definitions of acute, chronic, and those susceptible and at high risk for hepatitis B plus detailed interpretation of hepatitis B markers. ‘Top tips’ are given to assist the relevant clinicians or public health/health protection practitioner/specialist to take timely and appropriate action. The laboratory, epidemiological, and infection prevention and control components of the investigation are listed. The importance of confidentiality and communication with the affected individual and close contacts is emphasized. Other possible scenarios, including the public health response to a cluster/outbreak are considered.