Homepage for CDC's information on pneumococcal disease, which is caused by Streptococcus pneumoniae.

Oct 3, 2022 · Pneumococcal disease is an infection caused by bacteria called Streptococcus pneumoniae (also known as pneumococcus). It causes contagious and potentially severe illness, …

Pneumococcal infection is an infection caused by the bacterium Streptococcus pneumoniae. [1] S. pneumoniae is a common member of the bacterial flora colonizing the nose and throat of 5–10% of …

Dec 14, 2025 · Pneumococcal infections can be mild or severe. The most common types of infections are Meningitis, Sepsis, Pneumonia, and ear and sinus infections

Pneumococcal Infections - Learn about the causes, symptoms, diagnosis & treatment from the MSD Manuals - Medical Consumer Version.

Sep 4, 2025 · Streptococcus pneumoniae (pneumococci) are gram-positive, alpha-hemolytic, aerobic, encapsulated diplococci. Pneumococcal infection is a major cause of otitis media, pneumonia, …

<p>Diseases caused by &nbsp;(pneumococc) constitute a major global public health problem. Serious diseases that are often caused by pneumococci include pneumonia, meningitis and febrile …

Oct 22, 2025 · Overview Pneumococcal disease (PD) is an infection caused by Streptococcus pneumoniae bacteria. There are more than 100 S. pneumoniae serotypes. Since there are so many …

May 1, 2025 · Pneumococcal infections are caused by the Streptococcus pneumoniae bacteria, and range from mild to severe. There are more than 90 different strains of Streptococcus pneumoniae (S. …

There are three major conditions caused by pneumococci: pneumonia, bacteremia, and meningitis. They are all caused by infection with the same bacteria, but have different symptoms. Pneumococcal …