El-Tras, W. F., Tayel, A. A., El Tholth, M., & Guitian, J. Brucella infection in fresh water fish: Evidence for natural infection of Nile catfish, Clarias gariepinus, with Brucella melitensis. VETERINARY MICROBIOLOGY, 141(3-4), 321-325. https://doi.org/10.1016/j.vetmic.2009.09.017