title: Class I integrons and SXT elements in El Tor strains isolated before and after 1992 Vibrio cholerae O139 outbreak, Calcutta, India.
abstract: We examined the distribution of class I integrons and SXT elements in Vibrio cholerae O1 El Tor strains, isolated in Calcutta, India, before and after the V. cholerae O139 outbreak in 1992. Class I integrons, with aadA1 gene cassette, were detected primarily in the pre-O139 strains; the SXT element was found mainly in the post-O139 strains.
authors.affiliation: Institute of Microbial Technology, Chandigarh, India.
authors.lastname: Amita
authors.forename: S Roy
authors.initials: SR
authors.lastname: Chowdhury
authors.forename: M
authors.initials: M
authors.lastname: Thungapathra
authors.forename: T
authors.initials: T
authors.lastname: Ramamurthy
authors.forename: G Balakrish
authors.initials: GB
authors.lastname: Nair
authors.forename: Amit
authors.initials: A
authors.lastname: Ghosh
mesh_terms: D002771:Cholera / Q000453:epidemiology*; D004196:Disease Outbreaks; D024881:Drug Resistance, Bacterial; D006801:Humans; D007194:India / Q000453:epidemiology; D032023:Integrons / Q000187:drug effects* / Q000235:genetics; D012189:Retrospective Studies; D041242:Vibrio cholerae O139 / Q000187:drug effects / Q000235:genetics / Q000302:isolation & purification*