Table 4.

Time to detection of different colony numbers of gram-negative bacterial strains without preincubation of aerobic bottles

Microorganism1:100 dilution1:1,000 dilution1:10,000 dilution
CFU/mlTime to detection (h) for bottle:CFU/mlTime to detection (h) for bottle:CFU/mlTime to detection (h) for bottle:
121212
P. aeruginosa 90010.510.730012.712.73014.314.3
A. baumannii 1.4 × 104 11.811.05.5 × 103 18.214.715018.017.3
S. maltophilia 1024.023.8<1026.824.8<1029.330.7
E. coli 3.0 × 103 7.87.82759.09.01010.310.2