Indan Journal of Medical Research Indan Journal of Medical Research Indan Journal of Medical Research Indan Journal of Medical Research
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ORIGINAL ARTICLE
Year : 2019  |  Volume : 149  |  Issue : 2  |  Page : 290-294

Presence & mobility of antimicrobial resistance in Gram-negative bacteria from environmental samples in coastal Karnataka, India


1 Division of Infectious Diseases, Nitte University Centre for Science Education & Research, Mangaluru, India
2 Nitte University Centre for Science Education & Research, Mangaluru, India

Correspondence Address:
Dr Indrani Karunasagar
Nitte Centre for Science Education & Research, Kotekar-Beeri Road, Paneer Campus, Derelakatte, Mangalore 575 018, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijmr.IJMR_2088_17

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To understand antimicrobial resistance (AMR) patterns and mechanisms of horizontal gene transfer in human-associated environments is essential to AMR surveillance. Gram-negative bacteria (1122 isolates) from food-animal environments were characterized for antimicrobial susceptibility and AMR genes. Seventy five per cent of the isolates (837 of 1122) were resistant to at least one of the antibiotics tested. Resistance to more than three groups of antimicrobials (multidrug resistance) was observed in 43 isolates with most often encountered (12 of 43) resistance to β-lactams, tetracycline, quinolones and nitrofurantoin. The profile of frequently reported plasmid-mediated resistance gene in these isolates was determined. The mobility of these elements as plasmids or phages was examined. The blaCTX-M gene was present in the plasmid of 61 per cent and packed in induced phage fractions in 72 per cent of the isolates and blaTEMin 69 per cent phage fractions compared to 15 per cent presence in the plasmid.


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