Virulence factor expression by Serratia marcescens during microbial keratitis is regulated by stress response protein GumB

The goal of this project was to analyze virulence factor expression during microbial keratitis and to determine the impact of the Rcs system regulator GumB on the transcriptional profile Three eyes were injected with no bacteria controls were included, 5 with the wild-type keratitis isolate strain K904, and 4 with an isogenic gumB mutant