ECHO VIRUS INFECTIONS IN ENGLAND AND WALES 1959-63.
D000293:Adolescent; D002648:Child; D004457:Echovirus Infections; D004739:England; D029822:Enterovirus B, Human; D004813:Epidemiology; D006801:Humans; D007223:Infant; D014777:Virus Diseases; D014852:Wales
ADOLESCENCE; CHILD; ECHO VIRUSES; ENGLAND; EPIDEMIOLOGY; INFANT; VIRUS DISEASES; WALES