Alpha-hemolytic | |||
S. pneumoniae | |||
Encapsulated with polysacharride | |||
Optochin sensitive | |||
Lancet-shaped gram positive diplococci | |||
Bile soluble | |||
Rust colored sputum in lobar pneumonia | |||
MOPS: Meningitis, Otitis Media, Pneumonia, Sinusitis (most common bacterial cause of each) | |||
IgA protease | |||
Sickle cell patients susceptible | |||
Rx: Macrolide, erythromycin, 60S subunit | |||
Rx: Ceftriaxone | |||
23 valent adult vaccine: only IgM response | |||
7 valent childrens vaccine: IgG response (long-lasting immunity) | |||
S. viridans | |||
Optochin resistant | |||
Bile resistant | |||
Dental caries (especially Strep. mutans) | |||
Worsens previous valve damage, Mitral valve prolapse, most likely to be damaged | |||
Adheres to Platelets, using dextrans glue synthesized from glucose | |||
No capsule |
Tuesday, November 8, 2016
Streptococcus pneumoniae and viridans
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