Key Findings

The study identified various extended-spectrum beta-lactamase (ESBL) genes, including bla CTX-M-1, bla CTX-M-9, bla TEM, bla SHV, and bla CTX-M-15, in diarrhoeagenic Escherichia coli (DEC) strains from travellers. These genes confer resistance to beta-lactam antibiotics such as cefoxitin, cefotaxime, and ceftazidime.