Encapsulated lancet-shaped gram positive diplococci
Normal flora and important cause of invasive disease, often vaccine preventable
Community-acquired pneumonia, bacteremia, and meningitis
Many other syndromes possible but uncommon including endocarditis, MSK, etc
Pneumococcal conjugate vaccine (PCV13) and pneumococcal polysaccharide vaccine (PPV23) available.
PCR testing is available for CSF.