Key points are not available for this paper at this time.
Streptococcus pneumoniae ( Spn ) is the leading cause of invasive disease. Importantly, only a subset of the 100 capsule types carried by Spn cause the majority of serious infections, suggesting that the biochemical properties of capsular polysaccharide are directly tied to virulence.
Brissac et al. (2021) studied this question.