TABLE 1.
Distribution of microorganisms isolated from 210 positive blood cultures
| Definitive identification | No. of monomicrobial isolates | No. of polymicrobial isolates | Total no. (%) of isolates |
|---|---|---|---|
| Enterobacteriaceae | 157 | 6 | 163 (74.4) |
| Escherichia coli | 82 | 1 | 83 (37.9) |
| Klebsiella pneumoniae | 31 | 2 | 33 (15.1) |
| Proteus mirabilis | 10 | 1 | 11 (5.0) |
| Enterobacter cloacae complex | 10 | 0 | 10 (4.6) |
| Enterobacter aerogenes | 6 | 0 | 6 (2.7) |
| Serratia marcescens | 6 | 0 | 6 (2.7) |
| Klebsiella variicola | 4 | 0 | 4 (1.8) |
| Klebsiella oxytoca | 3 | 0 | 3 (1.4) |
| Morganella morganii | 2 | 0 | 2 (0.9) |
| Citrobacter freundii complex | 1 | 0 | 1 (0.5) |
| Enterobacter amnigenus | 1 | 0 | 1 (0.5) |
| Providencia rettgeri | 1 | 0 | 1 (0.5) |
| Providencia stuartii | 0 | 1 | 1 (0.5) |
| Kluyvera spp. | 0 | 1 | 1 (0.5) |
| Non-Enterobacteriaceae | 43 | 4 | 47 (21.5) |
| Pseudomonas aeruginosa | 21 | 0 | 21 (9.6) |
| Acinetobacter baumannii complex | 3 | 0 | 3 (1.4) |
| Achromobacter xylosoxidans | 2 | 0 | 2 (0.9) |
| Stenotrophomonas maltophilia | 2 | 0 | 2 (0.9) |
| Bacteroides fragilis | 2 | 0 | 2 (0.9) |
| Fusobacterium spp. | 2 | 0 | 2 (0.9) |
| Haemophilus influenzae | 2 | 0 | 2 (0.9) |
| Acinetobacter lwoffii | 1 | 1 | 2 (0.9) |
| Haemophilus paraphrohaemolyticus | 0 | 1 | 1 (0.5) |
| Acinetobacter junii | 1 | 0 | 1 (0.5) |
| Aeromonas caviae | 1 | 0 | 1 (0.5) |
| Alistipes finegoldii | 1 | 0 | 1 (0.5) |
| Bacteroides thetaiotaomicron | 1 | 0 | 1 (0.5) |
| Moraxella osloensis | 1 | 0 | 1 (0.5) |
| Neisseria flavescens | 0 | 1 | 1 (0.5) |
| Prevotella denticola | 1 | 0 | 1 (0.5) |
| Prevotella buccae | 1 | 0 | 1 (0.5) |
| Rhizobium radiobacter | 1 | 0 | 1 (0.5) |
| Veillonella spp. | 0 | 1 | 1 (0.5) |
| Gram-positive organismsa | 4 | 5 | 9 (4.1) |
| Total | 204 | 15 | 219 |
a
Reported as Gram-negative bacilli on blood culture Gram stain report (see Tables 2).