Rabbit Anti-S. pneumoniae type 21 Polyclonal antibody for Agg. Streptococcus pneumoniae, or pneumococcus, is a Gram positive, alpha hemolytic diplococcus aerotolerant anaerobe and a member of the genusStreptococcus. A significant human pathogenic bacterium,?S. pneumoniaewas recognized as a major cause of pneumonia in