| virulence factors of non-o1 non-o139 vibrio cholerae isolated in córdoba, argentina. | v. cholerae non-o1 non-o139 serogroups isolated from clinical and environmental sources in córdoba, argentina, were analyzed for the presence and expression of virulence genes. most of the strains studied contained the genes toxr and hlya, but lacked ctxa, zot, ace, tcpa and stn. the culture supernatants were tested for hemolytic and cytotoxic activity. the enterotoxic potential of the strains was studied in a rabbit ileal loop assay and their genetic profiles were compared by pfge. the environm ... | 2004 | 15786867 |