through GI tract (also sinuses, inner ear, and skin)
what does beta hemolysis mean
complete hemolysis
beta hemolysis is caused by what?
hemolysins O and S (S = stable in oxygen)
what strep species are beta-hemolytic
Group A (S pyogenes)
Group B (S agalactiae)
Group C and G
what does alpha hemolysis mean
partial aka green hemolysis
what is alpha hemolysis caused by
hydrogen peroxide produced by the bacterium oxidizes the hemoglobin
, which strep species are alpha hemolytic
Viridans strep species and strep. pneumoniae
where do viridans strep species commonly live
mouth
what is S. pneumoniae the most common cause of
community acquired pneumonia and community acquired meningitis
(alongside otitis media)
T/F: S. pneumoniae is ALWAYS alpha hemolytic
false
what does gamma hemolysis mean
no hemolysis
what strep species is gamma hemolytic
S. bovis
what is lancefield grouping based on
carbohydrate antigens on strep surface
what is group A strep
Streptococcus pyogenes
what is group B strep
Streptococcus agalactiae
T/F: group D strep formerly included what are now considered enterococcus
species
true
which viridans strep species doesn't follow the rules and is usually non-
hemolytic (gamma hemolytic)
S. bovis
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller luzlinkuz. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.