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. 2014 Jan 23;210(1):25–34. doi: 10.1093/infdis/jiu058

Figure 2.

Figure 2.

Biofilm-growth of group A streptococcus (GAS) on live epithelial cells. A, squamous cell carcinoma (SCC) 13 cell viability after exposure to broth-grown (planktonic) and biofilm-derived GAS 771, JRS4, or MGAS315. B, Biomass during biofilm formation over prefixed undifferentiated SCC13 cells (solid lines) and after transplantation to live SCC13 cells (dotted lines) for MGAS315 and 771. C, Macroscopic view of biofilms of 771 GAS formed over abiotic polystyrene surfaces, prefixed undifferentiated SCC13 cells, or biofilms transplanted to live undifferentiated SCC13 cells. Abbreviation: CFU, colony-forming units.