Table 3.
Results for Enterococci tested with the MICPOS1 standard turbidity inoculum method and visual reading versus AST reference methods.
No. of Isolates AST Reference a |
No. of Isolates MICPOS1 b | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Antimicrobial | Total | R | I | S | R | I | S | CA c (no. [%]) |
mE d (no. [%]) |
ME e (no. [%]) |
VME f (no. [%]) |
Ampicillin | 49 | 30 | 0 | 19 | 29 | 1 | 18 | 47 (96) | 0 (0) | 1 (2) | 1 (2) |
Ciprofloxacin | 49 | 29 | 0 | 20 | 30 | 0 | 19 | 48 (98) | 0 (0) | 1 (2) | 0 (0) |
Teicoplanin | 49 | 23 | 0 | 26 | 23 | 0 | 26 | 49 (100) | 0 (0) | 0 (0) | 0 (0) |
Vancomycin | 49 | 23 | 0 | 26 | 23 | 0 | 26 | 49 (100) | 0 (0) | 0(0) | 0 (0) |
Quinupristin-dalfopristin | 49 | 19 | 16 | 14 | 19 | 16 | 14 | 45 (91) | 4 (9) | 0 (0) | 0 (0) |
Linezolid | 49 | 2 | 0 | 47 | 2 | 0 | 47 | 49 (100) | 0 (0) | 0 (0) | 0 (0) |
Tigecycline | 49 | 4 | 0 | 45 | 4 | 0 | 45 | 47 (96) | 0 (0) | 1 (2) | 1 (2) |
a Number of isolates tested with the reference method and classified as R resistant; I, intermediate; S, susceptible; b number of isolates tested with the evaluated method and classified as R resistant; I, intermediate; S, susceptible; c CA, categorical agreement; d mE, minor error; e ME, major error; f VME, very major error.