Smallpox surveillance in remote and inaccessible areas of India.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D007194:India; D007195:Indian Ocean Islands; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance; D012899:Smallpox / Q000453:epidemiology / Q000517:prevention & control*; D012934:Social Isolation