Recognized Interpretive Criteria

 

Minimum Inhibitory
Concentrations
(mcg/mL)

Disk Diffusion
(zone diameter in mm)

Pathogen

S

I

R

S

I

R

Enterobacterales

M100 standard is recognized

Acinetobacter spp.

M100 standard is recognized

Enterococcus spp.

M100 standard is recognized

Staphylococcus spp.

M100 standard is recognized

Haemophilus influenzae and parainfluenzae

M100 standard is recognized

Neisseria gonorrhoeae

M100 standard is recognized

Streptococcus pneumoniae

M100 standard is recognized

Streptococcus spp. β- Hemolytic Group

M100 standard is recognized

Anaerobes

M100 standard is recognized

-

-

-

Bacillus anthracis

M45 standard is recognized

-

-

-

Brucella spp.

M45 standard is recognized

-

-

-

Franciscella tularensis

M45 standard is recognized

-

-

-

Vibrio cholerae

M45 standard is recognized

-

-

-

Yersinia pestis

M45 standard is recognized

-

-

-

Mycoplasma pneumoniae

M43-A standard is recognized

-

-

-

Ureaplasma urealyticum

M43-A standard is recognized

-

-

-

S = Susceptible; I = Intermediate; R = Resistant

Exceptions to the recognized standard of CLSI M100

For the bacteria listed below, susceptibility test interpretive criteria are not recognized at this time:

Other Non-Enterobacteriaceae

Streptococcus spp. Viridans Group