“Hepatitis A and hepatitis B are two types of hepatitis. (The others are types C, D, and E.) You get them from a viral infection.  Each of those viruses is different. But the diseases they cause are similar. Hepatitis brings liver inflammation, and it can be serious or even life-threatening.  There are safe and effective vaccines that can prevent hepatitis A and B (but not for types C, D, or E). There is also a combination vaccine that guards against hep A and B.”.

WebM.D.