TABLE 2.
Medium (step) | No. of true-positive isolates | No. of false-negative isolates | Sensitivity (%) |
---|---|---|---|
CAS (primary plating) | 19 | 1 | 95 |
HEA (primary plating) | 16 | 4 | 80 |
CAS (after enrichment) | 20 | 0 | 100 |
HEA (after enrichment) | 20 | 0 | 100 |
A total of 20 isolates were recovered on at least one medium (sensitivity, 100%).