論文

査読有り 最終著者
2020年9月

Prevalence of antibiotic resistance in the tropical rivers of Sri Lanka and India

Environmental Research
  • Manish Kumar
  • ,
  • Sulfikar
  • ,
  • Tushara Chaminda
  • ,
  • Arbind K. Patel
  • ,
  • Himaya Sewwandi
  • ,
  • Payal Mazumder
  • ,
  • Madhvi Joshi
  • ,
  • Ryo Honda

188
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.envres.2020.109765

© 2020 Elsevier Inc. We evaluate the imprints of urbanization, landuse and lifestyle on the prevalence and provenance of antibiotic resistance in the tropical rivers of Sri Lanka (Kelani and Gin) and India (Sabarmati, and Brahmaputra River). The prevalence of E. coli in the Kelani, Sabarmati, and Brahmaputra Rivers was in the range of 10–27, 267–76,600, and <50 CFU ml−1 respectively. Isolated E. coli colonies were subjected to six antibiotics to assess their resistance. We found higher resistance to old generation antibiotics like tetracycline (TC), and sulfamethoxazole (ST) transcends the resistance for fluoroquinolones like norfloxacin (NFX), ciprofloxacin (CIP), and levofloxacin (LVX). Interestingly, both Indian rivers had exhibited relatively higher resistance to TC and ST than the Kelani river or Gin River, implying that the Sri Lankan situation is relatively less critical. At genetic level the resistance for β-lactams, fluoroquinolones and sulphonamides, were detected in many samples, as reported globally. While the resistance genes for aac-(6’)-1b-cr, qnrS and sul1 were detected in both Sri Lankan and Indian Rivers, blaTEM and ampC were specific to the Indian Rivers only. Decoupling of the prevalence of metal contamination and antibiotic resistance has been noticed in India and Sri Lanka. Study implies that urbanization, landuse, and lifestyle (ULL) are the three most critical factors governing multidrug resistance (MDR) and fecal contamination.

リンク情報
DOI
https://doi.org/10.1016/j.envres.2020.109765
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/32554273
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85086403382&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85086403382&origin=inward
ID情報
  • DOI : 10.1016/j.envres.2020.109765
  • ISSN : 0013-9351
  • eISSN : 1096-0953
  • PubMed ID : 32554273
  • SCOPUS ID : 85086403382

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