Haque, Fahim Kabir MonjurulRahman, MehnazRafid, Shahazad RuhulChaity, Sadia Sharmin2026-01-082026-01-0820252025-08ID 21226055ID 23326082ID 20326009http://hdl.handle.net/10361/27416This thesis is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Microbiology, 2025.Catalogued from PDF version of thesis.Includes bibliographical references (pages 57-63).Antimicrobial resistance (AMR) is an alarming increasing trend at present leading to a range of health complications. This study focused on the analysis of municipal household water in the south and north of Dhaka, Bangladesh, with conclusive results of 81.16% fecal coliform contamination in the samples and confirmed 53.33% of Escherichia coli presence. According to the molecular evaluation, the most pervasive ESBL gene was found to be SHV at 32.35% and in terms of carbapenem resistance, both NDM and KPC had similar trends at roughly 3%. Upon screening the isolates, 49% of them were revealed to be multidrug resistant and 21% portrayed extensive drug resistance, leading to complexity of therapeutic choices. The results suggest the urgency of improvements for the water treatment system in Dhaka as well as standard monitoring regularly in order to mitigate the prevalence and consequences of antibiotic resistance rooting from mainstream water supply in the urban areas.63 pagesenBRAC University theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.Antimicrobial resistanceEscherichia coliFecal contaminatCarbapenem resistancePublic healthDrug resistance in microorganisms.Escherichia coli infections.Public health--Bangladesh.Water-supply.Thesis