Staphylococcus
•Family
•Genus
•Species
more than 20 specie s
Classification
Micrococcaceae
Micrococcus and Staphylococcus
S. aureus
S. saprophyticus
S. epidermidis
M. luteus
Gram-Positive Cocci
FAMILY Streptococcaceae (catalase negative) Group A: -hemolytic Streptococcus pyogenes
Group B: -hemolytic (occasionally or ) S. agalactiae
Group C: -hemolytic ( or ) S. anginosus, S. equismilis
Group D: or hemolytic ( ) S. bovis Group F: -hemolytic S. anginosus Group G: -hemolytic S. anginosus
Viridans streptococci: (no group specific CHO)or hemolytic S. mutans and
S. salivarius, S. sanguis, S. mitis and S. milleri groups
Streptococcus pneumoniae (no group CHO)( -hemolytic)
Enterococcus (Group D CHO) hemolytic ( or )
Enterococcus faecalis, E. faecium
FAMILY Micrococcaceae (catalase positive) Coagulase-positive Staphylococcus aureus
Coag.-neg. Staphylococcus epidermidis, S. saprophyticus
Morphology
Morphology
Staph vs. Strep
Gram-positive cocci in clusters
Staphylococcus Streptococcus
Staphylococcus
