241: West et al. (2005) Optimization of Virulence Functions Through Glucosylation of Shigella LPS. Science 307 (5713): 1313

Science -- West et al. 307 (5713): 1313:

Thus, LPS glucosylation promotes bacterial invasion and evasion of innate immunity, which may have contributed to the emergence of serotype diversity in Shigella

Understanding the biochemistry of bacteria explains the diversity of dysentery.