TABLE 4.
Comparative times to positivity of clinically important bacteria and fungi when both the aerobic PFA and FA culture bottles were positive within 72 h
| Microorganism(s) | No. of isolates | Mean time to positivity (h)
|
|
|---|---|---|---|
| PFA bottles | FA bottles | ||
| Staphylococcus aureus | 50 | 17.3 | 17.7 |
| Coagulase-negative staphylococci | 21 | 24.4 | 23.0 |
| Viridans group streptococcus | 1 | 46.2 | 50.4 |
| Enterococcus sp. | 12 | 14.4 | 14.3 |
| Gram-positive bacillia | 6 | 26.1 | 27.5 |
| Enterobacteriaceaeb | 52 | 11.9 | 12.3 |
| Other gram-negative bacteriac | 35 | 20.2 | 19.9 |
| Yeastsd | 27 | 38.3 | 41.2 |
| All microorganisms | 204 | 20.2 | 20.6 |
Includes Comyebacterium jeikeium (three isolates), L. monocytogenes (two isolates), and diphtheroids (one isolate).
Includes E. coli (13 isolates), Enterobacter cloacae (13 isolates), K. pneumoniae (8 isolates), K. oxytoca (7 isolates), Serratia marcescens (6 isolates), Citrobacter freundii (2 isolates), Enterobacter aerogenes (1 isolate), Proteus mirabilis (1 isolate), and Pantoea agglomerans (1 isolate).
Includes P. aeruginosa (12 isolates), Stenotrophomonas maltophilia (8 isolates), B. cepacia (7 isolates),Acinetobacter sp. (3 isolates), Chryseobacterium sp. (3 isolates), Neisseria sp. (1 isolate), and O. anthropi (1 isolate).
Includes Candida albicans (14 isolates), Candida krusei (6 isolates), Candida parapsilosis (4 isolates), Candida lusitaniae (2 isolates), and Candida tropicalis (1 isolate).