Pneumomoccal Pneumonia 。Streptococcus pneumoniae: Capsue Gram-positive encapsulated diplococci Diagnosis by culturing bacteria 。Penicillin is drug of choice Figure 24.13Pneumomoccal Pneumonia Figure 24.13 • Streptococcus pneumoniae: Gram-positive encapsulated diplococci • Diagnosis by culturing bacteria • Penicillin is drug of choice