Streptococcus Pneumoniae

(Invasive pneumococcal disease)

Streptococcus pneumoniae is a bacterium that is most often associated with mild illness, such as ear and sinus infections. It may also cause life-threatening invasive disease, like pneumonia, sepsis (bloodstream infection), and meningitis (inflammation of the tissues that cover the brain and spinal cord). These types of illness are most common in babies, children under 5 years of age, the elderly, and people with weakened immune systems.

Streptococcus pneumoniae is considered "invasive" when it is found in the blood, spinal fluid or other normally sterile sites.

Information on this page has been organized into three categories. Please choose one of the following.

Invasive bacteria home

Additional Info Group

Last Revised: March 30, 2017