Fig. 4From: Invasive pneumococcal disease caused by mucoid serotype 3 Streptococcus pneumoniae: a case report and literature reviewSputum smear (a) and colonies (b) of the isolate from the patient showing serotype 3 Streptococcus pneumoniae. Capsule is stained pale pink (a). Mucoid colonies on blood agar are not dimpled (b)Back to article page