title: In reply.
authors.affiliation: British Columbia Centre for Disease Control, Vancouver, BC, Canada. james.johnston@bccdc.ca.
authors.forename: James C
authors.initials: JC
authors.lastname: Johnston
authors.affiliation: Montreal Chest Institute, McGill University, Montreal, QC, Canada.
authors.forename: Faiz Ahmad
authors.initials: FA
authors.lastname: Khan
authors.affiliation: Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
authors.forename: David W
authors.initials: DW
authors.lastname: Dowdy
mesh_terms: D000995:Antitubercular Agents / Q000627:therapeutic use*; D006801:Humans; D017410:Practice Guidelines as Topic / Q000592:standards*; D014376:Tuberculosis / Q000188:drug therapy*; D014944:World Health Organization
chemical_list: D000995:Antitubercular Agents