ID 2 Rybakov (Gram +) Flashcards
Gram Positive
Cocci
Anaerobic
(2)
1) peptococcus
2) peptostreptococcus
clusters = catalase ___
pairs/chains = catalase ___
- (+)
- (-)
Gram Positive
Cocci
Aerobic
Clusters (Catalase +)
Coagulase (+)
(1)
Staphylococcus aureus
Gram Positive
Cocci
Aerobic
Clusters (Catalase +)
Coagulase (-)
(1)
CoNS
(staphylococcus epidermidis)
CoNS - coagulase negative staphylococus
Gram Positive
Cocci
Aerobic
Pairs/Chains (Catalase -)
alpha hemolysis
(2)
1) Streptococcus pneumoniae
2) Viridans streptococci
Gram Positive
Cocci
Aerobic
Pairs/Chains (Catalase -)
beta-hemolysis
(2)
1) Streptococcus pyogenes (Group A)
2) Streptococcus agalactiae (Group B)
Gram Positive
Cocci
Aerobic
Pairs/Chains (Catalase -)
gamma-hemolysis
(2)
1) Enterococcus faecium
2) Enterococcus faecalis
Gram Positive
Bacilli
Anaerobic
Spore Forming
(2)
1) Clostridium spp.
2) Clostridioides difficile
Gram Positive
Bacilli
Anaerobic
Non-spore Forming
(2)
1) Cutibacterium
2) Actinomyces
Gram Positive
Bacilli
Aerobic
Spore Forming
(1)
1) Bacillus spp.
Gram Positive
Bacilli
Aerobic
Non-spore Forming
(3)
1) Corynebacterium
2) Lactobacillus spp.
3) Listeria monocytogenes
Gram-positive Summary
Morphology:
- Most medically important pathogens are ___
- Gram-positive bacilli should be interpreted within clinical context
Colony Clustering
- Staphylococcus form ___
- Streptococci & Enterococci appear in ___ or ___
Agar Appearance
- Oral flora: alpha-hemolytic ( ___ and ___ )
- Skin, pharynx, genitourinary: beta-hemolytic ( ___ and ___ )
- Gastrointestinal: gamma-hemolytic ( ___ and ___ )
- cocci
- clusters
- pairs, chains
- S. pneumoniae and Viridans streptococci
- Group A & Group B streptococci
- Enterococcus faecalis & faecium
A) S. aureus
