title: School contact tracing for tuberculosis using two-step Mantoux testing.
authors.affiliation: Scarborough Health Department, Ontario.
authors.forename: T A
authors.initials: TA
authors.lastname: Herrick
authors.forename: Z M
authors.initials: ZM
authors.lastname: Davison
mesh_terms: D002648:Child; D016358:Contact Tracing / Q000379:methods*; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D016017:Odds Ratio; D009864:Ontario / Q000453:epidemiology; D012307:Risk Factors; D012572:School Health Services; D012882:Skin Tests; D014376:Tuberculosis / Q000453:epidemiology / Q000276:immunology / Q000517:prevention & control*