Class I Integrons and SXT Elements in El Tor Strains Isolated before and after 1992 Vibrio cholerae O139 Outbreak, Calcutta, India
Emerging Infectious Diseases
U.S. Department of Health and Human Services * Centers for Disease Control and Prevention
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.
Amita, Chaudhuri SR, Thungapathra M, Ramamurthy T, Nair GB, Ghosh A. (2003). Class 1 integrons and SXT elements in El Tor strains isolated before and after 1992 Vibrio cholerae O139 outbreak, Calcutta, India. Emerging Infectious Diseases, 9(4): 500- 502.