title: Mycobacterium tuberculosis in Ontario, Canada: Insights from IS6110 restriction fragment length polymorphism and mycobacterial interspersed repetitive-unit-variable-number tandem-repeat genotyping.
abstract: A collection of 1,308 clinical Mycobacterium tuberculosis isolates from Ontario, Canada, was genotyped by IS6110 restriction fragment length polymorphism (RFLP) and mycobacterial interspersed repetitive-unit-variable-number tandem-repeat (MIRU-VNTR) analysis. RFLP or >12 MIRU-VNTR loci were necessary for resolution of Indo-Oceanic strains. The low clustering rate and high strain diversity indicate that, in Ontario, most tuberculosis results from reactivation of latent infections.
authors.affiliation: Ontario Agency for Health Protection and Promotion, Public Health Laboratory-Toronto, Canada.
authors.forename: David C
authors.initials: DC
authors.lastname: Alexander
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: Guthrie
authors.forename: Daria
authors.initials: D
authors.lastname: Pyskir
authors.forename: Anne
authors.initials: A
authors.lastname: Maki
authors.forename: Natalia
authors.initials: N
authors.lastname: Kurepina
authors.forename: Barry N
authors.initials: BN
authors.lastname: Kreiswirth
authors.forename: Pamela
authors.initials: P
authors.lastname: Chedore
authors.forename: Steven J
authors.initials: SJ
authors.lastname: Drews
authors.forename: Frances
authors.initials: F
authors.lastname: Jamieson
mesh_terms: D015373:Bacterial Typing Techniques / Q000379:methods*; D016000:Cluster Analysis; D016172:DNA Fingerprinting / Q000379:methods*; D004251:DNA Transposable Elements; D004269:DNA, Bacterial / Q000235:genetics*; D005838:Genotype; D006801:Humans; D018598:Minisatellite Repeats; D017720:Molecular Epidemiology; D009169:Mycobacterium tuberculosis / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D009864:Ontario / Q000453:epidemiology; D011110:Polymorphism, Genetic; D012150:Polymorphism, Restriction Fragment Length; D014376:Tuberculosis / Q000453:epidemiology*
chemical_list: D004251:DNA Transposable Elements; D004269:DNA, Bacterial