The prevention of (viral) hepatitis.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000818:Animals; D002648:Child; D002675:Child, Preschool; D003428:Cross Infection / Q000517:prevention & control; D006506:Hepatitis A / Q000209:etiology / Q000517:prevention & control* / Q000628:therapy; D006509:Hepatitis B / Q000209:etiology / Q000517:prevention & control* / Q000628:therapy; D006518:Hepatitis Viruses; D006520:Hepatitis, Animal / Q000453:epidemiology; D006801:Humans; D006920:Hygiene; D007109:Immunity; D008875:Middle Aged; D008992:Monkey Diseases / Q000150:complications; D010357:Patient Isolators; D010564:Personnel, Hospital; D011677:Punctures / Q000009:adverse effects; D012758:Shellfish / Q000009:adverse effects; D013242:Sterilization; D019966:Substance-Related Disorders / Q000150:complications; D065227:Transfusion Reaction; D014611:Vaccination; D014777:Virus Diseases / Q000517:prevention & control; D015047:Zoonoses / Q000453:epidemiology