George, E ASankar, SJesudasan, M VSudandiradoss, CNandagopal, B2015-03-162015-03-162014-04George E A, Sankar S, Jesudasan M V, Sudandiradoss C, Nandagopal B. Incidence of extended spectrum beta lactamase producing Escherichia coli among patients, healthy individuals and in the environment. Indian Journal of Medical Microbiology. 2014 April-June ; 32 (2): 172-174.http://imsear.searo.who.int/handle/123456789/156886We investigated the faecal carriage of extended spectrum β‑lactamases (ESBL) producing Escherichia coli in different groups of human subjects and in the environment. A total of 363 E. coli strains were isolated from stool samples of patients (n = 77), healthy subjects (n = 170) and from different environmental samples (n = 116). A total of 124 ESBL producing E. coli strains were isolated in this study. The frequency of ESBL producing E. coli was found to be highest (60.3%) among the strains isolated from patients, followed by healthy individuals (38%) and the environment (10.5%). The environment was observed to have a very low number of ESBL producing E. coli.enEscherichia coliextended spectrum β‑lactamaseresistancesusceptibilityArticle