The Different Types of Hepatitis A and B Immunizations
6. Hepatitis A Vaccines

The hepatitis A vaccine is a shot of inactive hepatitis A virus that is designed to stimulate the body’s immune system to create antibodies that protect a person against the virus should they ever come in contact with it. It is given in the form of two shots over a period of six months. The hepatitis A vaccine is also available in a combination form that contains both the hepatitis A and B vaccine and is available for people over the age of eighteen. The combination vaccine is given as three shots over six months.
5. Hepatitis B Vaccines

There are two types of hepatitis B vaccines available: recombinant vaccines and plasma-derived vaccines. There is no difference regarding efficacy or duration of protection between the two, and they can be used interchangeably. These vaccines have been available in most countries since 1982. Each vaccine undergoes an extensive purification process, and they are effective in protecting over ninety-five percent of infants, children and young adults who are given the shot. After the age of forty, protection levels drop to ninety percent. By sixty, it falls to seventy-five percent.
