title: XDR tuberculosis requires emphasis on primary transmission.
authors.forename: Sanjay
authors.initials: S
authors.lastname: Basu
mesh_terms: D003140:Communicable Disease Control; D024901:Drug Resistance, Multiple, Bacterial; D015658:HIV Infections / Q000150:complications / Q000188:drug therapy; D006801:Humans; D009169:Mycobacterium tuberculosis / Q000187:drug effects*; D018088:Tuberculosis, Multidrug-Resistant / Q000188:drug therapy / Q000382:microbiology* / Q000635:transmission*