Table 3.
Microbiological etiology in community-acquired infection
| Microorganism | Infection without SIRS | Sepsis | Severe sepsis | Septic shock |
|---|---|---|---|---|
| Gram-positive | ||||
| Streptococcus pneumoniae | 12 | 9 | 7 | 2 |
| Group A/C/G streptococci | 8 | 6 | 11 | 1 |
| Group B streptococci | 1 | 4 | 2 | 0 |
| Enterococci | 2 | 1 | 2 | 0 |
| Staphylococcus aureus | 25 | 19 | 25 | 2 |
| Coagulase negative Staphylococcus | 7 | 2 | 1 | 1 |
| Staphylococcus lugdunensis | 1 | 0 | 0 | 0 |
| Staphylococcus epidermidis | 3 | 4 | 2 | 0 |
| Staphylococcus saprophyticus | 1 | 0 | 0 | 0 |
| Non haemolytic streptococcus | 0 | 1 | 1 | 0 |
| Gram-negative | ||||
| Escherichia coli | 46 | 44 | 37 | 3 |
| ESBL - Escherichia coli | 1 | 0 | 2 | 0 |
| Klebsiella spp. | 12 | 8 | 7 | 0 |
| Other Enterobacteriaceae | 9 | 2 | 8 | 1 |
| Moraxella catarrhalis | 6 | 1 | 4 | 1 |
| Pseudomonas aeruginosa | 4 | 3 | 4 | 0 |
| Haemophilus spp. | 16 | 9 | 10 | 1 |
| Campylobacter spp. | 1 | 0 | 0 | |
| Legionella spp. | 0 | 0 | 4 | 0 |
| Unspecified gram-negative rods | 4 | 1 | 4 | 0 |
| Anaerobic bacteria | ||||
| Clostridium spp. | 2 | 0 | 4 | 0 |
| Bacteroides spp. | 0 | 0 | 0 | 0 |
| Unspecified gram-positive rods | 2 | 1 | 1 | 0 |
| Other | ||||
| Mycoplasma pneumoniae | 1 | 2 | 0 | 0 |
| Mycobacterium tuberculosis | 0 | 1 | 0 | 0 |
| Candida spp. | 4 | 1 | 1 | 1 |
| H1N1 | 0 | 0 | 1 | 0 |
| Herpesvirus | 1 | 0 | 0 | 0 |
| Sapovirus | 0 | 1 | 0 | 0 |
| VZV | 0 | 0 | 1 | 0 |
| Norovirus | 0 | 0 | 1 | 0 |
*The added number of pathogens exceeds the number of cases because one patient could have more than one pathogen found in obtained cultures