Anti-microbial sensitivity pattern of Salmonella species from animal and environmental source

Salmonella spp. is one of the most important zoonotic pathogens transmitted among humans, animals, and birds. In recent times, there is a high risk of emergence of the multi-drug-resistant strains due to the similarity of antibiotic classes used to treat animals and humans. Hence, the present study was aimed at performing antimicrobial susceptibility testing using Kirby-Bauer’s disc diffusion method and to determine the anti-microbial sensitivity pattern. Salmonella enterica isolates showed 100% resistance to Penicillin-G and varied degree of resistance to rest of the selected class of anti-microbials. Salmonella typhimurium isolates showed multiple antibiotic resistance index of >0.2 for Ampicillin and Penicillin-G. Antibiotic resistance have a profound effect on future treatment options in food animals and humans, which is a major public health concern.