1 McGill International TB Centre and Department of Epidemiology and Biostatistics, McGill University, Montreal, QC H3A 1A2, Canada.
2 McGill International TB Centre and Department of Epidemiology and Biostatistics, McGill University, Montreal, QC H3A 1A2, Canada; Manipal McGill Center for Infectious Diseases, Manipal University, Manipal, India. Electronic address: [email protected].