Epidemiological studies in smallpox. A study of intrafamilial transmission in a series of 254 infected families.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004197:Disease Reservoirs; D005260:Female; D006801:Humans; D007194:India; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D012899:Smallpox / Q000453:epidemiology* / Q000235:genetics*