TOPICS: Streptococcus pneumoniae, gram positive, lancet-shaped, diplococci, alpha hemolytic, IgA protease, optochin sensitive, quellung reaction, polysaccharide capsule, vaccine, bile soluble, MOPS, meningitis, otitis media, pneumonia, sinusitis, sepsis, asplenic, sickle cell, macrolides, ceftriaxone
