| A | B |
|---|
| all Staph | catalase pos |
| all Strep | catalase neg |
| Enterococci | esculin hydrolysis, antibiotic resistance, grows in 6.5% salt |
| Enterococci | causes UTI, wound infection, and SBE, pos for esculin and PYR |
| Enterococci | hydrolyzes esculin and PYR pos |
| Group D Strep | Strep that causes UTI, wound infections, endocarditis, and is esculin pos and 6.5% NaCl neg |
| Group D Strep | esculin pos, PYR neg |
| Micrococcus | will not ferment glucose, tetrads on gram stain |
| Micrococcus | resistant to lysostaphin |
| Staphylococcus aureus | produces catalase and coagulase |
| Staph aureus | causes toxic shock, scalded skin syndrome, meningitis, food poisoning, boils |
| Staph aureus | Staph that causes impetigo |
| Staphyococcus aureus | salt tolerant, DNAse pos, coagulase pos, ferments mannitol |
| Staph epidermidis | Staph that causes SBE in predisposed patients |
| Staph saprophyticus | Staph that causes UTI |
| Staph saprophyticus | novobiocin resistance |
| Streptococcus agalactiae | group B, beta hemolytic |
| Streptococcus agalactiae | newborm septicemia and meningitis |
| Strep agalactiae | CAMP test pos, produces hippuricase that hydrolyzes hippurate |
| Strep pneumoniae | most common cause of pneumonia and middle ear infections |
| Strep pneumoniae | catalase neg gram pos lancet shaped diplococci |
| Strep pneumoniae | alpha hemolytic and susceptible to optochin |
| Strep pneumoniae | bile soluble and Quellung capsular swelling pos |
| Streptococcus pyogenes | Strep that causes impetigo |
| Streptococcus pyogenes | cause of erysipelas and scarlet fever |
| Streptococcus pyogenes | most common cause of acute pharyngitis |
| Streptococcus pyogenes | circulating Ag plus corresponding Ab can lead to acute glomerulonephritis or rheumatic fever |
| Strep pyogenes | bacitracin pos and PYR pos |
| Strep pyogenes | catalase neg gram pos coccus that is esculin neg and PYR pos |
| Strep pyogenes | possesses group A antigen |
| Strep pyogenes | beta hemolysis and CAMP neg and susceptible to bacitracin |
