| Group S | Positive Culture pre-ECMO | Positive Culture on-ECMO |
| n = 58 | n = 30 | n = 28 |
Gram-positive cocci | 29 (47%) | 19 (61%) | 10 (32%) |
Methicillin-resistant Staphylococcus aureus | 4 (6.5%) | 3 (9.7%) | 1 (3.2%) |
Methicillin-sensitive Staphylococcus aureus | 4 (6.5%) | 3 (9.7%) | 1 (3.2%) |
Staphylococcus epidermidis | 5 (8.1%) | 2 (6.5%) | 3 (9.7%) |
Streptococcus | 8 (13%) | 7 (23%) | 1 (3.2%) |
Enterococcus | 5 (8.1%) | 1 (3.2%) | 4 (13%) |
Gram-negative rods | 29 (47%) | 10 (32%) | 19 (61%) |
Pseudomonas | 8 (13%) | 1 (3.2%) | 7 (23%) |
Klebsiella | 7 (11%) | 2 (6.5%) | 5 (16%) |
Citrobacter | 3 (4.8%) | 3 (9.7%) | 0 (0%) |
Enterobacter | 2 (3.2%) | 0 (0%) | 2 (6.5%) |
E. coli | 3 (4.8%) | 2 (6.5%) | 1 (3.2%) |
Serratia | 3 (4.8%) | 0 (0%) | 3 (9.7%) |
Bacteroides | 1 (1.6%) | 1 (3.2%) | 0 (0%) |
Other gram-negative | 2 (3.2%) | 1 (3.2%) | 1 (3.2%) |
Fungus | 4 (6.5%) | 2 (6.5%) | 2 (6.5%) |