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Performance characteristics of carrot broth culture for Streptococcus agalactiae following overnight incubation and at time of final result for 67 PCR true-positive specimens
| Time of carrot broth culture observation | No. of positive results | Sensitivity (%) | Negative predictive value (%) |
|---|---|---|---|
| After overnight incubation | 34 | 50.7 | 80.5 |
| After final subculture | 60 | 89.6 | 95.1 |
