ARR3 and infection: In the infant rabbit infection model, expression of seven RR (VC1081, VC1082, VC1155, vieA, VC2702 (cbrR), VCA0210, and VCA1105) was increased and 1 RR (carR) was decreased by more than 2-fold significantly in comparison to V. cholerae cells grown in vitro in nutrient broth.