Answered by Dr. Truong Huu Khanh – Head of the Infectious and Neurological Diseases Department, Children’s Hospital No. 1, Ho Chi Minh City, and Medical Advisor of the VNVC:
Hepatitis has various groups: A, B, C, D, E; but the three most common groups are hepatitis A, B and C. There are vaccines for Hepatitis A and B while the vaccine for hepatitis C is not yet available though there are very effective medications for this group.
Currently, Vietnam also has a vaccine for hepatitis A + B. If you have been vaccinated against hepatitis B but not hepatitis A, you can choose hepatitis A + B vaccine. If you have had a full course of hepatitis A but not been vaccinated against hepatitis B, you totally can get the vaccine for hepatitis A + B to achieve the frame and dose needed for hepatitis B.