Algorithm for the management of household contacts of cases of acute hepatitis A

Modified from the 2009 UK guidelines, Appendix A, page 17.

Text alternative

• Household contact of case of hepatitis A with no history of hepatitis A vaccine or laboratory confirmed hepatitis A
• Branch A: less than or equal to 14 days post exposure
• Branch A1: Chronic liver disease or HIV infection or immuno-suppressed
• Category A1.1. Provide NHIG (because of reduced and delayed immune response to vaccine and risk of severe illness)
• Branch A2: Previously healthy
• Branch A2.1: Aged less than 12 months
• Category A2.1. Vaccinate carers and/or exclude infant from childcare AND provide NHIG
• Branch A2.2: Aged 12 months to 40 years
• Category A2.2. Provide hepatitis A vaccine
• Branch A2.3: Aged over 40 years
• Category A2.3. Provide NHIG and/or vaccine
• Branch B: over 14 days post exposure (All contacts)
• Branch B1: Non-food handler
• Category B1.1. Provide health and hygiene advice only
• Branch B2: Food handler
• Category B2.1: Conduct risk assessment

Reference

Thomas L and The Hepatitis A Guidelines Group. Guidance for the prevention and control of hepatitis A infection (v1.1). Health Protection Agency (Public Health England); 2009 [cited 2017 13 Apr].

Return to the NSW Control Guidelines for hepatitis A