Absence of active immunization against infectious hepatitis; follow-up study after administration of gamma globulin.
D005500:Follow-Up Studies; D006505:Hepatitis; D006506:Hepatitis A / Q000517:prevention & control*; D006801:Humans; D014611:Vaccination; D014765:Viral Vaccines; D005719:gamma-Globulins / Q000627:therapeutic use*
D014765:Viral Vaccines; D005719:gamma-Globulins
GAMMA GLOBULIN/therapeutic use; HEPATITIS, INFECTIOUS/prevention and control