Twinrix® is a vaccine that helps prevent Hepatitis A and Hepatitis B.
Hepatitis A and B are two serious liver diseases caused by the hepatitis A and B viruses. These viruses are endemic (constantly present) in much of the developing world. Popular holiday destinations such as the Caribbean are considered risk areas for unprotected travellers, and you could contract hepatitis A or B even at 5-star resorts.

DIN: 02230578 (Adult vaccine)
DIN: 02237548 (Junior vaccine)

Source : Public Health Agency of Canada