TWINRIX®external icon is licensed for use in persons aged >18 years and is a combined hepatitis A (HAVRIX) and hepatitis B vaccine (ENGERIX-B®). ACIP recommends the hepatitis A and hepatitis B vaccine for some of the affected populations (e.g., persons at risk for both hepatitis A and B infection …
: https://www.cdc.gov/hepatitis/outbreaks/InterimOutbreakGuidance-HAV-VaccineAdmin.htm