Fig. 5From: A fatal case of fulminant group: a streptococcal infection in a neonateHistopathology of the tonsil. A Mild neutrophilic infiltration of tonsils. A bacterial mass is visible in a superficial crypt (black arrows). B Immunostaining using anti-type A Streptococcus antibody as the primary antibody shows a mass of bacteria in a tonsillar cryptBack to article page