National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692 Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
There is scarcity of information on multiple drug resistance strains of Listeria spp. especially in Indian conditions from animal environment. Present study reports the multiple drug resistance strains of Listeria spp isolated from animal and its environment. All the confirmed 48 Listeria isolates were characterized by biochemical test and in vitro pathogenicity test. For antimicrobial susceptibility / resistance, Bauer-Kirby disc diffusion assay was carried out. Results indicated that a high per cent of isolates were resistant to carbenicillin (93.75 %) followed by colistin and norfloxacin (91.68 % each), cephaloridine (89.59 %), and cephalexin (81.25 %), kanamycin and sulphadiazine (64.58 % each), cloxacillin, streptomycin (60.42 % each), co-trimoxazole (52.08 %), trimethoprim (50.00 %), amikacin (47.92 %), pefloxacin (37.50 %), novobiocin, gentamicin (31.25 % each), oxytetracycline (27.08 %), ampicillin, cephalothin (22.92% each); lesser per cent of isolates were observed resistant for vancomycin (18.75 %), erythromycin (16.67 %), penicillin-G (14.58 %), chloramphenicol (12.50 %), tetracycline (10.42 %), while least number of resistant isolates were observed against amoxycillin (6.25 %), amoxyclav (4.16 %), and enrofloxacin (2.07 %). Taking overall antibiotic sensitivity pattern of the Listeria spp. isolated into consideration, the present findings indicate the presence of multiple drug resistance in Listeria spp. isolated from animal samples pointing towards an increase in the potential threat to animal and human health posed by this pathogen.
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