TABLE 4.
Comparison of rapid identification systems for G. sanguinis
| Test kit | No. of testsa | No. positiveb | No. negativeb | No. variableb | Useful tests (%)c | No. of profiles | Proportion of correct IDsd | ID(s) by manufacturer (no. identified) |
|---|---|---|---|---|---|---|---|---|
| Cry24 | 29 | 8 | 7 | 14 | 52 | 20 | 8/28 | G. sanguinis (8), E. raffinosus (1), S. cricetus (1), S. bovis (2), no ID (16) |
| Cry4 | 29 | 13 | 6 | 10 | 66 | 22 | 8/28 | A. viridans (7), E. avium (1), E. raffinosus (12), no ID (8) |
| ID32 | 32 | 16 | 6 | 10 | 69 | 25 | 28/28 | Unacceptable ID (28) |
| IDS | 14 | 3 | 6 | 5 | 64 | 13 | 21/28 | S. mutans (5), E. casseliflavus (1), E. maloderatus (1), no choice (21) |
a
Number of tests included in each kit.
b
Number positive, ≥95% of strains tested positive; number negative, ≤5% strains tested positive; number variable, >5% strains tested positive and <95% of strains tested negative.
c
Useful tests, the number of positive and negative tests divided by total number of tests, indicates the usefulness of the tests used for formulating an identification scheme for the species.
d
ID, identification.