Table 4.
Bacteria or viruses effectively isolated, in absolute numbers, as well as the respective number of severe outcome cases
| Gram-positive, n = 37 | Severe outcome | |
|---|---|---|
| Streptoccocus A | 5 | 0 |
| Streptoccocus B | 3 | 1 |
| Streptoccocus pneumoniae | 11 | 1 |
| Staphylococcus aureus | 5 | 1 |
| Staphylococcus epidermidis | 7 | 1 |
| Other Gram-positives | 6 | 0 |
| Gram-negative, n = 61 | ||
| Neisseria meningitidis | 25 | 1 |
| Escherichia coli | 15 | 0 |
| Klebsiella spp. | 4 | 1 |
| Pseudomonas spp. | 6 | 1 |
| Other Gram-negatives | 11 | 0 |
| VIRAL n = 19 | ||
| Influenza H1N1 | 5 | 0 |
| Proven viral origin | 14 | 0 |
| Multiple virus and/or bacteria isolated, n = 9 | ||
| Unknown, n = 70 (of which presumed viral n = 15) | 3 | |
In some children, more than one type of bacteria and/or virus was isolated (most often two, but in two cases and three different agents). In others, a bacterial or viral infection was presumed on presentation but not identified in cultures or PCR (unknown)