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Time to positivity for all positive blood culture bottles. Positive bottles (n = 13,592) were plotted in 30-min intervals. Of note, the BacT/Alert Virtuo system screens for positivity continuously for the first 74.4 h and every 144 min thereafter, resulting in greater column interspersion at later time points. After 4 days of incubation, 98.71% of all bottles flagged positive.
