TY  - JOUR
AU  - Islam, Md. Robeul
AU  - Banik, Avijit
AU  - Anjum, Hasnain
AU  - Fariha, Nusrat Nabila
AU  - Rushni, Zarin
AU  - Abony, Maruf
AU  - Bhowmik, Dipa Rani
AU  - Ahmed, Zakaria
PY  - 2025
DA  - 2025/12/09
TI  - Occurrence of Multidrug Resistant <em>Escherichia coli & Escherichia coli</em> O157:H7 in Raw Cow Milk from Dhaka, Bangladesh
JO  - Recent Progress in Nutrition
SP  - 025
VL  - 05
IS  - 04
AB  - Enteropathogenic strains of Escherichia coli, like the serotype O157:H7, can cause significant health issues if consumed. Milk and dairy products can serve as a reservoir for the bacteria. Dissemination of multidrug-resistant E. coli through dairy products can become a potential health hazard if consumed. The present study investigates the occurrence of multidrug-resistant E. coli O157:H7 in raw milk obtained from farms and markets around Dhaka, Bangladesh. A Total of 50 milk samples were collected in this study from September 2023 to March 2024, of which 22 were from dairy farms and 28 from market vendors. Isolation and identification of E. coli was conducted through conventional cultural and biochemical methods. Identification of E. coli O157:H7 among the isolates was performed using Sorbitol MacConkey agar, followed by EC-MUG and latex agglutination test. To assess their antimicrobial susceptibility, the isolates were tested against 10 antibiotic groups. A total of 19 milk samples (19/50; 38%) were found to be positive for E. coli, whereas 14% were confirmed as E. coli O157: H7 (7/50). All isolates were susceptible to Meropenem, Imipenem, and Levofloxacin. However, resistance against Cefoxitin, Amoxicillin, and Ceftazidime was found in 85%, 71%, and 85% of the isolates, respectively. The frequent occurrence of E. coli O157:H7 in milk samples obtained and their multidrug-resistant nature observed in this study is alarming for public health. An emphasis on the responsible use of antibiotics, and implementation of improved AMR surveillance to control and reduce AMR load in the Bangladeshi dairy industry should be taken with urgency.
SN  - 2771-9871
UR  - https://doi.org/10.21926/rpn.2504025
DO  - 10.21926/rpn.2504025
ID  - Islam2025
ER  -