Prevalence and antibiotic resistance pattern of Staphylococcus aureus of dairy origin from Udaipur (Rajasthan) region

Abstract

Staphylococcus aureus is an important food-borne pathogen. Enteropathogenic S.aureus in milk should be regarded as a part of the risk analysis of milk and milk products. A total of 60 milk samples were collected from 20 small holder dairy farms having 10 or less than 10 cattle from Vallabhnagar tehsil of Udaipur district, India. The antibiotic susceptibility test for cattle milk samples positive isolates showed high resistance towards penicillin G 36/40 (90%) and ampicillin 30/40 (75%), and showed resistant to methicillin 17/40 (42.5%), trimethoprim 17/40 (42.50%), erythromycin 9/40 (22.5%), co-Trimoxazole 10/40 (25%), tetracycline 8/40 (20%), ceftriaxone 7/40 (17.5%), gentamicin 4/40 (10%), azithromycin 5/40 (12.5%), chloramphenicol 1/40 (2.5%), and ciprofloxacin 1/40 (2.5%).