Figure 4.

SEM showing chains of adherent cocci organized into biofilms attached to the surface of pig skin epithelium (A and B) and to the surface of a tonsil removed due to recurrent GAS infection (C and D) or ATH (E and F).

Roberts et al. BMC Pediatrics 2012 12:3   doi:10.1186/1471-2431-12-3
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