IN-VITRO ADHESION AND INVASION OF EPITHELIAL-CELL LINES BY SALMONELLASTRAINS OF BOVINE ORIGIN

24 Salmonella strains were divided into three groups according to the circumstances of isolation. The adhesion and invasion abilities of the strains were determined using two permanent cell lines (IEC-6, VERO) and an epithelial cell line from the small intestine of a calf fetus ( pKD). Strains of different groups showed no differences in their abili ty to adhere to the cells tested. Significant differences were found f or the invasion ability. Strains isolated from organs of calves suffer ing from salmonellosis showed a significant higher invasiveness for pe rmanent cell lines and a considerable higher invasiveness for pKD cell s than strains of the other groups.