Streptococcus pneumoniae

Streptococcus pneumoniae
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SEM micrograph of S. pneumoniae.
Scientific classification
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Binomial name
Streptococcus pneumoniae
(Klein 1884)
Chester 1901

Streptococcus pneumoniae, or pneumococcus, is a gram-positive, alpha-hemolytic diplococcus aerotolerant anaerobe and a member of the genus Streptococcus.[1] An important human pathogen, S. pneumoniae was recognized as a major cause of pneumonia in the late 19th century and is the subject of many humoral immunity studies.

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