| Gram-positive | Streptococcus pneumoniae | 56 (16.4) | Streptococcus pneumoniae | 2 (0.6) |
| Streptococcus agalactiae | 2 (0.6) | Streptococcus agalactiae | 0 (0.0) |
| Staphylococcus aureus (MRSA) | 7 (2.1) | Staphylococcus aureus (MRSA) | 1 (0.3) |
| Staphylococcus aureus (MSSA) | 1 (0.3) | Staphylococcus aureus (MSSA) | 11 (3.2) |
| Coagulase negative Staphylococcus | 5 (1.5) | Coagulase negative Staphylococcus | 5 (1.5) |
| Staphylococcus epidermidis (MRSE) | 21 (6.2) | Staphylococcus epidermidis (MRSE) | 1 (0.3) |
| Enterococcus faecalis | 7 (2.1) | Enterococcus faecalis | 0 (0.0) |
| Enterococcus faecium | 9 (2.6) | Enterococcus faecium | 4 (1.2) |
| Gram-negative | Enterobacteriaceae | Escherichia coli | 33 (9.7) | Escherichia coli | 16 (4.7) |
| Klebsiella pneumoniae | 63 (18.5) | Klebsiella pneumoniae | 47 (13.5) |
| Enterobacter cloaceae | 1 (0.3) | Enterobacter cloaceae | 0 (0.0) |
| Morganella morganii | 12 (3.5) | Morganella morganii | 0 (0.0) |
| Providencia sp. | 11 (3.2) | Providencia sp. | 0 (0.0) |
| Citrobacter freundii | 0 (0.0) | Citrobacter freundii | 1 (0.3) |
| Proteus mirabilis | 5 (1.5) | Proteus mirabilis | 3 (0.9) |
| Others | Acinetobacter baumannii | 59 (17.3) | Acinetobacter baumannii | 44 (12.9) |
| Burkholderia cepacia | 9 (2.6) | Burkholderia cepacia | 2 (0.6) |
| Burkholderia pseudomallei | 0 (0.0) | Burkholderia pseudomallei | 1 (0.3) |
| Pseudomonas aeruginosa | 15 (4.4) | Pseudomonas aeruginosa | 13 (3.8) |
| Moraxella catarrhalis | 4 (1.2) | Moraxella catarrhalis | 1 (0.3) |
| Haemophilus influenzae | 48 (14.1) | Haemophilus influenzae | 2 (0.6) |
| Haemophilus influenzae type B | 1 (0.3) | Haemophilus influenzae type B | 0 (0.0) |
| Stenotrophomonas maltophilia | 29 (8.5) | Stenotrophomonas maltophilia | 3 (0.9) |
| Atypical bacteria | Mycoplasma sp. | 21 (6.2) | Mycoplasma sp. | 0 (0.0) |