Measles surveys.
The authors present background data indicating that there is a close correlation between serological findings and children's measles histories obtained from parents. They conclude that interrogative surveys can yield reliable epidemiological information even though the sample of the survey population checked serologically may be small.
D002675:Child, Preschool; D004812:Epidemiologic Methods; D006801:Humans; D007194:India; D007223:Infant; D008457:Measles / Q000175:diagnosis / Q000453:epidemiology*; D012698:Serologic Tests