USA300 and USA500 clonal lineages of Staphylococcus aureus do not produce a capsular polysaccharide due to conserved mutations in the cap5 locus.
Boyle-Vavra S, Li X, Alam MT, Read TD, Sieth J, Cywes-Bentley C, Dobbins G, David MZ, Kumar N, Eells SJ, Miller LG, Boxrud DJ, Chambers HF, Lynfield R, Lee JC, Daum RS.
Boyle-Vavra S, et al. Among authors: david mz.
mBio. 2015 Apr 7;6(2):e02585-14. doi: 10.1128/mBio.02585-14.
mBio. 2015.
PMID: 25852165
Free PMC article.