Tayh, Ghassan, et al. “Prevalence, Virulence Genes, and Antimicrobial Profiles of Escherichia Coli O157:H7 Isolated from Healthy Cattle in Tunisia”. The Journal of Infection in Developing Countries, vol. 16, no. 08, Aug. 2022, pp. 1308-16, doi:10.3855/jidc.15855.