Streptococcus pneumoniae (pneumococcus) is a Gram-positive bacterium that is answerable for most of network obtained pneumonia. It is a commensal creature in the human respiratory tract, implying that it profits by the human body, without hurting it. In any case, disease by pneumococcus might be hazardous, causing pneumonia, yet additionally bronchitis, otitis media, septicemia, and meningitis.

S. pneumoniae is alpha-hemolytic, implying that it can separate red platelets through the creation of hydrogen peroxide (H2O2). The creation of H2O2 by the bacterial disease can likewise make harm DNA, and execute cells inside the lungs. Pneumococcal pneumonia causes fever and chills, hacks, trouble breathing, and chest torment. On the off chance that the contamination spreads to the cerebrum and spinal string, it can cause pneumococcal meningitis, described by a hardened neck, fever, disarray, and migraines.

Pneumococcal contamination is liable for 1-2 million newborn child passings around the world, consistently. During flu plagues, S. pneumoniae is related with higher mortality in patients contaminated with the two microorganisms. It is felt that S. pneumoniae and Haemophilius influenzae synergistically affect each other, while contaminating a similar host.