Source:http://linkedlifedata.com/resource/umls/id/C0170300
NCI: A vaccine used to prevent infection with the hepatitis A virus, which causes a serious liver disease. The vaccine is made of a weakened form of the virus that cannot cause disease but causes the body's immune system to make antibodies that destroy the hepatitis A virus.,MSH: Vaccines or candidate vaccines used to prevent infection with hepatitis A virus (HEPATOVIRUS).