TABLE 2.
Comparison of media for detection of Salmonella, before enrichment and after 24 and 48 h of incubation, from 916 stool specimens from inpatients of three hospitalslegend
| Medium | No. of strains detected before enrichment
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Salmonella
|
False positives
|
Sensitivity (%)
|
Specificity (%)
|
Efficiency (%)
|
||||||
| 24 h | 48 h | 24 h | 48 h | 24 h | 48 h | 24 h | 48 h | 24 h | 48 h | |
| ABC | 24 | 30 | 8 | 11 | 50.0 | 62.5 | 99.1 | 98.7 | 97 | 97 |
| COMPASS agar | 26 | 37 | 16 | 109 | 54.2 | 77.1 | 98.1 | 87.4 | 96 | 87 |
| CHROMagar Salmonella agar | 22 | 32 | 30 | 112 | 45.8 | 66.7 | 96.5 | 87.1 | 94 | 86 |
| SM ID agar | 25 | 33 | 54 | 80 | 52.1 | 68.8 | 93.6 | 90.8 | 92 | 90 |
| Hektoen | 30 | 41 | 127 | 159 | 62.5 | 85.4 | 85.1 | 81.7 | 84 | 82 |
legend
A total of 48 isolates were recovered on at least one medium before enrichment (sensitivity, 100%)