Streptococcus pneumoniae
To view the entire topic, please log in or purchase a subscription.
Official website of the Johns Hopkins Antibiotic (ABX), HIV, Diabetes, and Psychiatry Guides, powered by Unbound Medicine. Johns Hopkins Guide App for iOS, iPhone, iPad, and Android included. Explore these free sample topics:
-- The first section of this topic is shown below --
MICROBIOLOGY
- Streptococcus pneumoniae (pneumococcus): Gram-positive diplococcus with polysaccharide capsule, demonstrated by Quellung reaction or capsular swelling when antibodies bind to capsular polysaccharide antigen.
- Ecologic niche is nasopharynx, colonizes 5-10% of adults, 20-40% of children.
- Definite pathogen when isolated from sterile site (blood, CSF, pleural or joint fluid).
- Probable pathogen in respiratory specimens (Gram stain or culture) or when urine Ag+ in setting of pneumonia.
-- To view the remaining sections of this topic, please log in or purchase a subscription --
MICROBIOLOGY
- Streptococcus pneumoniae (pneumococcus): Gram-positive diplococcus with polysaccharide capsule, demonstrated by Quellung reaction or capsular swelling when antibodies bind to capsular polysaccharide antigen.
- Ecologic niche is nasopharynx, colonizes 5-10% of adults, 20-40% of children.
- Definite pathogen when isolated from sterile site (blood, CSF, pleural or joint fluid).
- Probable pathogen in respiratory specimens (Gram stain or culture) or when urine Ag+ in setting of pneumonia.
There's more to see -- the rest of this topic is available only to subscribers.