Pertussis in rural children.
D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007194:India; D007223:Infant; D008297:Male; D012307:Risk Factors; D012424:Rural Population; D014917:Whooping Cough / Q000453:epidemiology*