Table 2.
Organisms isolated from blood and/or cerebrospinal fluid from 209 neonates during the first 7 days of life between 1997 and 2017 according to gestational week
| Gestational age (weeks) | ||||
|---|---|---|---|---|
| Type of organism, n (%) | < 28 | 29–36 | ≥ 37 | Total |
| Gram-pos bacteria: | ||||
| Group B Streptococci | 9 (24.3) | 23 (38.3) | 52 (46.4) | 84 (40.2) |
| Staphylococcus aureus | 7 (18.9) | 8 (13.3) | 18 (16.1) | 33 (15.8) |
| Enterococcus spp | 0 (0) | 0 (0) | 12 (10.7) | 12 (5.7) |
| Pneumococci | 0 (0) | 3 (5.0) | 3 (2.7) | 6 (2.9) |
| Coagulase-neg Staphylococcia | 10 (27.0) | 8 (13.3) | 0 (0) | 18 (8.6) |
| Listeria monocytogenes | 1 (2.7) | 3 (5.0) | 0 (0) | 4 (1.9) |
| Other Gram-pos bacteria† | 0 (0) | 1 (1.7) | 2 (1.8) | 3 (1.4) |
| Gram-neg bacteria: | ||||
| Escherichia coli | 3 (8.1) | 3 (5.0) | 12 (10.7) | 18 (8.6) |
| Klebsiella pneumoniae | 3 (8.1) | 1 (1.7) | 2 (1.8) | 6 (2.9) |
| Klebsiella oxytoca | 0 (0) | 2 (3.3) | 0 (0) | 2 (1.0) |
| Haemophilus influenzae | 0 (0) | 3 (5.0) | 2 (1.8) | 5 (2.4) |
| Enterobacter spp | 0 (0) | 0 (0) | 2 (1.8) | 2 (1.0) |
| Serratia Marcescens | 2 (5.4) | 1 (1.7) | 0 (0) | 3 (1.4) |
| Pseudomonas spp | 0 (0) | 2 (3.3) | 4 (3.6) | 6 (2.9) |
| Other Gram-neg. Bacteria‡ | 0 (0) | 2 (3.3) | 3 (2.7) | 5 (2.4) |
| Fungi: | ||||
| Candida albicans | 2 (5.4) | 0 (0) | 0 (0) | 2 (1.0) |
| Total | 37 (100) | 60 (100) | 112 (100) | 209 (100) |
a including e.g. S. epidermidis, S. hominis, S. capitis, † Beta-hemolytic streptococci group A and C, Actinomyces spp.
‡ Burkholdeira cepacia, Neisseria meningitidis, Bacteroides spp., Proteus mirabilis (fatal case)