Comparison among top fluorescence intensities and protein expression levels reached by the strains in study.

*Corresponds to signal intensity at least 2-fold higher than that observed for the non-induced control.†Corresponds to the border line of 2-fold higher signal intensity, compared to the non-induced control.NA - Not applicable.‡Relative to the parental virulent strain, L. interrogans serovar Copenhageni str. Fiocruz L1-130 strain.