Organism Groups
Staphylococcus aureus complex
S. aureus
S. argentus
Staphylococci spp
Methicillin susceptible S. aureus - MSSA
Methicillin resistant S. aureus - MRSA
Vancomycin intermediate S. aureus - VISA
Vancomycin resistant S. aureus - VRSA
Coagulase negative staphylococci - CoNS
Viridans group Streptococci
Streptococcus anginosus group
- S. anginosus
- S. constellatus
- S. intermedius
Streptococcus mitis group
Streptococcus mutans group
Streptococcus salivarius group
Streptococcus bovis/equinus group
- S. gallolyticus
- S. infantarius
- S. lutetiensis
- S. pasteurianus
Streptococcus pneumoniae
Penicillin susceptible (Pen-S)
MIC:
≤ 2µg/mL (parenteral-nonmeningitis)
≤ 0.06µg/mL (parenteral-meningitis)
≤ 0.06µg/mL - oral penicillin
Penicillin intermediate (Pen-I)
MIC:
4µg/mL - parenteral-nonmeningitis
0.12-1µg/mL - oral penicillin
Penicillin resistant (Pen-R)
MIC:
≥ 8µg/mL - parenteral-nonmeningitis
≥ 0.12µg/mL - parenteral-meningitis
≥ 2µg/mL - oral penicillin
ß-haemolytic Streptococci
S. pyogenes (Group A)
S. agalactiae (Group B)
S. dysgalactiae/S. equi (Group C/G)
Streptococci spp (zoonotic)
S. canis
S. equi subsp zooepidemicus
S. halichoeri
S. minor
S. suis
Enterococcus spp
E. avium group
E. caccae
E. casseliflavus
E. dispar
E. durans
E. faecalis
E. faecium
E. gallinarum
E. hirae
E. mundtii
E. pallens
Vancomycin resistant enterococci - VRE
Coryneform bacteria
Arthrobacter spp
Brevibacterium spp
Cellulomonas spp
Dermabacter spp
Microbacterium spp
Turicella spp
Oerskovia spp
Curtobacterium spp
Exiguobacterium spp
Enterobacterales
Cedecea spp
Citrobacter amalonaticus complex
Citrobacter freundii complex
Citrobacter koseri
Citrobacter sedlakii
Cronobacter spp
Edwardsiella spp
Enterobacter cloacae complex
Erwinia spp
Escherichia coli
Ewingella spp
Hafnia spp
Klebsiella aerogenes
Klebsiella oxytoca complex
Klebsiella pneumoniae/variicola
Kluyvera spp
Morganella morganii
Pantoea spp
Proteus mirabilis
Proteus vulgaris complex (P. vulgaris, P. hauseri, P. penneri)
Providencia spp (P. rettgeri, P. stuartii, P. vermicola)
Raoultella spp (R. ornithiolytica, R. terrigena, R. planticola)
Rahnella spp
Salmonella spp
Serratia spp
Shigella spp
Yersinia spp
Enterobacterales that produce cephalosporinases
AmpC cephalosporinase:
Enterobacter spp
Citrobacter freundii complex
Hafnia spp
Klebsiella aerogenes
Serratia spp
Morganella spp
Providencia spp
Class A cephalosporinase:
Proteus vulgaris complex
Other fermenting Gram negative bacilli
Aeromonas spp
Plesiomonas spp
Vibrio species
Aerobic Gram negative bacilli - nonfermenters
Achromobacter spp
Acidovorax spp
Acinetobacter spp
Advenella spp
Agrobacterium spp
Alcaligenes spp
Bordetella spp (other than B. pertussis)
Brevundimonas spp
Burkholderia spp
Chromobacterium spp
Chryseobacterium spp
Comamonas spp
Cupriavidus spp
Delftia spp
Elizabethkingia spp
Empedobacter spp
Kertersia spp
Methylobacterium spp/Methylorubrum spp
Moraxella catarrhalis
Moraxella spp (other than M. catarrhalis)
Myroides spp
Ochrobactrum spp
Oligella spp
Pandoraea spp
Paracoccus spp
Pseudomonas spp
Ralstonia spp
Rhizobium spp
Roseomonas spp
Shewanella spp
Sphingobacterium spp
Sphingobium spp
Sphingomonas spp
Stenotrophomonas maltophilia
Fastidious Gram negatives
Actinobacillus spp
Aggregatibacter spp
Bergeyella spp
Brucella spp
Campylobacter spp
Capnocytophaga spp
Cardiobacterium spp
Dysgomonas spp
Eikenella spp
Francisella spp
Haemophilus spp
Helicobacter spp
Kingella spp
Mannheimia spp
Neisseria spp
Pasteurella spp
Suttonella spp
Weeksella spp