EXPERIMENTS WITH ATTENUATED EPIDEMIC HEPATITIS VIRUS.
D000293:Adolescent; D002648:Child; D003141:Communicable Diseases; D006505:Hepatitis; D006506:Hepatitis A; D006518:Hepatitis Viruses; D006801:Humans; D007106:Immune Sera; D007223:Infant; D007231:Infant, Newborn
D007106:Immune Sera
ADOLESCENCE; CHILD; HEPATITIS VIRUSES; HEPATITIS, INFECTIOUS; IMMUNE SERUMS; INFANT; INFANT, NEWBORN