Streptococcaceae and Related Genera PART 2 Flashcards
Who is/are PYR positive?
- Group A
- Enterococcus spp.
Who is/are NaHippurate positive?
- Group B
Who is Bacitracin susceptible?
Group A
Strep. pyogenes
What Strep are LAP positive?
All of them we work with in the lab
What test did we use Coaggulation on in the lab? (not specific to this group)
- Group B
Who is/ are Quelling test positive?
Strep. pneumoniae
Name all of the ALPHA and gamma hemolytic Strep.
Strep. pneumoniae
Enterococcus sp.
Alpha Streptococci (Group D)
Alpha Streptococci (Not Group D)
Who is/are CAMP positive?
Group B
Tests to run on when you have catalase negative GPCs that are Alpha/Gamma hemolytic
- Optochin
- PYR
- Esculin
- NaCl
Name all of the BETA hemolytic strep.
Enterococcus sp. (rare) Beta streptococci (Group D) (rare) Beta streptococci (Group A) Beta streptococci (Group B) Beta streptococci ( Not Group A, B, or D)
Who is/are Bile Solubility positive?
Strep pneumoniae
Tests to run on when you have catalase negative GPCs that are Beta hemolytic
- PYR
- Esculin
- NaCl
- Bacitracin
- CAMP or NaHip
- Coaggultination (not specific for Group B but thats what we used it for)
Who can be a pseudocatalase (weak catalase +)?
Enterococcus species
Who is/are positive for Esculin
- Enterococcus
- Group D
Who is/are Optochin susceptible?
Strep. pneumoniae
Who is/are NaCl positive?
- Group B
- Enterococcus spp.
Group A / Strep. pyogenes
- hemolysis
- and two positive/sus tests
- Beta
- Bacitracin susceptible
- PYR positive
Group B / Strep. agalactiae
- hemolysis
- 3 positive tests
- Beta hemolytic
- CAMP pos
- NaCl pos
- NaHippurate pos
Not Group A, B, or D are otherwise known as…?
Groups C, G
Group D/ Strep. bovis
- Hemolysis
- 1 positive test
- Usually alpha or gamma (rarely beta)
- Esculin pos
Strep. pneumoniae
- Hemolysis
- 3 positive tests
- Alpha
- Optochin Susceptible
- Bile Solubility positive
- Quelling test positive
Enterocuccus spp.
- Hemolysis
- 3 positive tests
- Alpha (rarely beta)
- Esculin positive
- NaCl positive
- PYR positive
