What is the shape of pneumococcal pneumonia?
Pneumococcus (Streptococcus pneumoniae): Are Gram-positive bacteria in the shape of a slightly pointed cocci. They are usually found in pairs (diplococci), but are also found singly and in short chains.
What is the shape of diplococci?
A diplococcus (plural diplococci) is a round bacterium (a coccus) that typically occurs in the form of two joined cells.
How is Streptococcus pneumoniae identified?
S. pneumoniae can be identified using Gram stain, catalase, and optochin tests simultaneously, with bile solubility as a confirmatory test. If these tests indicate that the isolate is S. pneumoniae, serological tests to identify the serotype can be performed.
What is the meaning of Streptococcus pneumoniae?
Streptococcus pneumoniae (pneumococcus) is a Gram-positive bacterium that is responsible for the majority of community-acquired pneumonia. It is a commensal organism in the human respiratory tract, meaning that it benefits from the human body, without harming it.
What is the morphology of pneumonia?
Streptococcus pneumoniae cells are Gram-positive, lancet-shaped cocci (elongated cocci with a slightly pointed outer curvature). Usually, they are seen as pairs of cocci (diplococci), but they may also occur singly and in short chains.
What is the colony morphology of Streptococcus pneumoniae?
Streptococcus pneumoniae colonies vary in appearance depending on the degree of encapsulation of the organism. Heavily encapsulated strains can have large colonies, several millimeters in diameter, which appear gray and very mucoid, while less heavily encapsulated organisms usually have smaller colonies.
What is the scientific name of Diplococcus?
(dip’lō-kok’ŭs), Diplococcus pneumoniae, the type species of Diplococcus, is a member of the genus Streptococcus. See: Neisseria, Peptococcus, Streptococcus.
What is the short name for Streptococcus pneumoniae?
Pneumococcal disease is caused by bacteria called Streptococcus pneumoniae (pneumococcus).