title: [Difficulties in the realization and implementation of a national survey on the Annual Risk of Tuberculosis Infection in Madagascar].
abstract: The authors describe on the basis of their own experience, the difficulties that may arise during the achievement of a nationwide survey of the Annual Risk of Tubercular Infection and the analysis of the results. They stress the need of a close methodology at all stages of the survey, from conception to analysis, in order to get reliable and comparative results.
authors.affiliation: Service de Surveillance Epidémiologique, Ministèr B de la Santé/DLMT, Antananarivo Madagascar.
authors.forename: G
authors.initials: G
authors.lastname: Ranaivoson
authors.forename: B
authors.initials: B
authors.lastname: Andriamahefazafy
authors.forename: G
authors.initials: G
authors.lastname: Champetier de Ribes
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003627:Data Interpretation, Statistical; D006801:Humans; D008270:Madagascar / Q000453:epidemiology; D008403:Mass Screening / Q000379:methods* / Q000592:standards; D011159:Population Surveillance / Q000379:methods*; D015203:Reproducibility of Results; D012107:Research Design; D012307:Risk Factors; D012572:School Health Services; D014374:Tuberculin Test; D014376:Tuberculosis / Q000453:epidemiology* / Q000517:prevention & control*