Examining the antibiotic resistance pattern of Salmonella enteritidis isolated fromlivestock

Salmonella is a member of the Enterobacteriaceae family. The infection caused by this bacterium inhumans occurs in the form of gastroenteritis and enteric fever (typhoid and paratyphoid) and septicemia. Class۱ integrons are the most common integrons found among different serotypes of Salmonella, which causemultiple antibiotic resistance and cause problems in the treatment of infections caused by this bacterium inhumans and animals. The aim of this study is to determine the frequency of class ۱ integrons isolated fromsalmonella enteritidis of livestock and determination of the pattern of sensitivity to their antibiotic resistance.In this study, Salmonella samples obtained from ۸ calves from the microbial collection of the Faculty ofVeterinary Medicine were used to determine the frequency of Class ۱ ingrones of the Multiplex PCRtest.Antibiotic sensitivity test was performed by disc diffusion method, the results showed that ۱ strain (۱۲.۵%)had class ۱ ingrones out of ۸ strains of Salmonella enteritidis, also ۳۰.۸% of animal strains showed multipleantibiotic resistance . Conclusion that in strains with multiple resistance lacking class ۱ integrons, resistancegenes can be located on plasmids, transsporons or other classes of integrons.

کلیدواژه ها:

Salmonella ، Antibiotic Resistance Pattern ، Class ۱ Integrons