Figure 3From: Detection of group A Streptococcus in tonsils from pediatric patients reveals high rate of asymptomatic streptococcal carriage Fluorescent antibody staining of GAS (red) within the crypts (green) of pediatric tonsils removed due to ATH. (A) GAS within in vivo biofilm from a chinchilla. (B, C, D) GAS within the tonsillar crypts.Back to article page