44 Staph + Strep Flashcards
(31 cards)
Strep is a ____ (shape) that is often arranged in _____ (morphology).
Cocci; chains
Staph is a ___ (shape) that is usually arranged in ______ (morphology).
Cocci; clusters
Staph and strep are both Gram __
G+
Strep is catalase ____.
Negative
Staph is catalase ____.
Positive
What do strep colonies look like grossly?
Small clear colonies
What do staph colonies look like grossly?
Medium white to yellow colonies
Staph and strep both tend to result in _______ (type of inflammation) pathology.
Purulent/neutrophilic
What organism causes necrotizing fasciitis in dogs?
Strep. canis
_____ hemolytic strep tends to be more pathogenic.
What organism causes strangles in horses?
Strep equi ssp equi
An important type of strep in dogs and cats is _______.
Strep. canis
Two important types of strep in horses are __________.
Strep. equi ssp zooepidemicus and Step. equi ssp. equi
What kind of strep is zoonotic?
Strep. suis
What common opportunistic infections do Strep canis cause in dogs?
Pneumonia, UTIs, superficial or necrotizing skin infections, endocarditis
What is M protein and what species of microorganism is it found on?
Virulance factor of Strep; surface protein with adhesin and antiphagocytic properties (inhibits complement fixation)
What are 3 important species of coagulase positive Staph?
Staph aureus, Staph pseudintermedius, and Staph hyicus
Coagulase positive staph are usually (more/less) pathogenic.
More
What kind of staph causes mastitis in cattle?
Staph aureus
In general what kinds of infections do staph cause?
Skin infections, wound infections, mastitis, opportunistic infections
Greasy pig disease is caused by ___________
Staph hyicus
Bumble foot is caused by ______
Staph aureus
What is the function of Staphylococcus protein A (SpA)?
Virulence factor/surface protein that binds IgG by Fc region to disrupt opsonization
What is the function of the capsule in Staphylococcus?
Antiphagocytic, inhibits antibody attachment, binds host tissue
