Type and prevalence of bacteria identified in blood cultures during 2008–2017
| No of admissions in which organism* was identified | Proportion of admissions in which organism was identified | |
| Gram positive | ||
| Staphylococcus aureus | 409 | 18.1 |
| Alpha haemolytic streptococci | 204 | 9.0 |
| Enterococcus faecalis | 76 | 3.4 |
| Streptococcus pneumoniae | 74 | 3.3 |
| Streptococcus agalactiae | 74 | 3.3 |
| Streptococcus pyogenes | 63 | 2.8 |
| Enterococcus faecium | 53 | 2.3 |
| Streptococcus milleri | 47 | 2.1 |
| Other Enterococcus spp | 14 | 0.6 |
| Total | 1014 | 44.9 |
| Gram negative | ||
| Escherichia coli | 519 | 22.9 |
| Klebsiella pneumoniae | 180 | 7.9 |
| Pseudomonas aeruginosa | 70 | 3.1 |
| Enterobacter cloacae | 68 | 3.0 |
| Bacteroides fragilis | 26 | 1.1 |
| Serratia marcescens | 25 | 1.1 |
| Aeromonas spp | 23 | 1.0 |
| Klebsiella oxytoca | 22 | 1.0 |
| Other Pseudomonas spp | 21 | 0.9 |
| Acinetobacter baumannii | 18 | 0.8 |
| Burkholderia spp | 16 | 0.7 |
| Klebsiella aerogenes | 14 | 0.6 |
| Stenotrophomonas maltophilia | 14 | 0.6 |
| Total | 1016 | 44.7 |
| Multidrug resistant | ||
| MRSA | 71 | 3.1 |
| E. coli (ESBL) | 37 | 1.6 |
| Enterococcus faecium (VRE) | 13 | 0.4 |
| Klebsiella pneumoniae (ESBL) | 11 | 0.5 |
| E. coli CPE | 1 | 0 |
| Total | 133 | 5.6 |
*In 102 of the 2265 admissions with bacteraemia (4.5%), the organisms identified were present in <14 admissions, and are not presented in the table. All multidrug-resistant organisms are listed.
CPE, Carbapenemase-producing Enterobacterales; ESBL, Extended spectrum beta-lactamase; MRSA, Methicillin-resistant Staphylococcus aureus; VRE, Vancomycin-resistant enterococci.