Identification of the Phenicol Efflux Gene fexB and Its Co-Occurrence With the Oxazolidinone/Phenicol Resistance Gene optrA in Avian Campylobacter jejuni Isolates From Tunisia.

Key Points

• To identify the fexB gene and assess its co-occurrence with the optrA gene in Campylobacter jejuni isolates.
• Detection of fexB and optrA genes in avian Campylobacter jejuni isolates
• Analysis of resistance patterns
• First detection of the fexB gene in C. jejuni isolates from Tunisia
• Co-occurrence of fexB and optrA genes indicates a potential reservoir for resistance genes