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Prevalence of Colistin-Resistant, Carbapenem-Hydrolyzing Proteobacteria in Hospital Water Bodies and Out-Falls of West Bengal, India

Author

Listed:
  • Taniya Bardhan

    (National Institute of Biomedical Genomics, Kalyani 741251, West Bengal, India
    These authors contributed equally to this work.)

  • Madhurima Chakraborty

    (National Institute of Biomedical Genomics, Kalyani 741251, West Bengal, India
    These authors contributed equally to this work.)

  • Bornali Bhattacharjee

    (National Institute of Biomedical Genomics, Kalyani 741251, West Bengal, India)

Abstract

Indiscriminate use of antibiotics has resulted in a catastrophic increase in the levels of antibiotic resistance in India. Hospitals treat critical bacterial infections and thus can serve as reservoirs of multidrug resistant (MDR) bacteria. Hence, this study was conducted to gauge the prevalence patterns of MDR bacteria in hospital wastewater. Water samples collected from 11 hospitals and 4 environmental sources belonging to 5 most-densely populated districts of West Bengal, India were grown on MacConkey and Eosin Methylene Blue agar. A total of 84 (hospital-associated = 70, environmental water sources = 14) isolates were characterized. The predominant species found in water from hospital-associated areas (HAA) were Acinetobacter baumannii (22.9%), Escherichia coli (28.6 %), and Klebsiella pneumoniae (25.7%). Greater than 75% of the HAA isolates were found to be mcr-1 gene negative and colistinresistant. Meropenem non-susceptibility was also high among the HAA isolates at 58.6%, with the presence of the carbapenemase gene and bla NDM in 67.1% of the non-susceptible isolates. Among the three predominant species, significantly higher numbers of E. coli isolates were found to be non-susceptible to meropenem ((80%), p -value = 0.00432) and amikacin (AK (90%), p -value = 0.00037). This study provides evidence for the presence of high numbers of colistin-resistant and carbapenem-hydrolyzing Proteobacteriain hospital wastewater.

Suggested Citation

  • Taniya Bardhan & Madhurima Chakraborty & Bornali Bhattacharjee, 2020. "Prevalence of Colistin-Resistant, Carbapenem-Hydrolyzing Proteobacteria in Hospital Water Bodies and Out-Falls of West Bengal, India," IJERPH, MDPI, vol. 17(3), pages 1-12, February.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:3:p:1007-:d:316828
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    Cited by:

    1. Izabela Waśko & Aleksandra Kozińska & Ewa Kotlarska & Anna Baraniak, 2022. "Clinically Relevant β-Lactam Resistance Genes in Wastewater Treatment Plants," IJERPH, MDPI, vol. 19(21), pages 1-34, October.

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