Figure 4From: Detection of group A Streptococcus in tonsils from pediatric patients reveals high rate of asymptomatic streptococcal carriage 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).Back to article page