Pneumococcal infection is caused by the bacteria Streptococcus pneumoniae (pneumococcus).
Streptococcus pneumoniae causes a wide range of diseases, more common ones include middle ear infection (acute otitis media) and chest infection (pneumonia). It may also cause various forms of invasive pneumococcal diseases, such as infection of the brain membranes (meningitis) and blood stream (bacteraemia and sepsis). The infection can be serious or even life-threatening.
For details, please refer to the factsheet of Pneumococcal Infection.