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Table 2 Microbiological findings on patients who developed ventilator-associated pneumonia in ICUs of University of Lyon hospitals (France), January 2001-December 2009

From: Early-onset ventilator-associated pneumonia incidence in intensive care units: a surveillance-based study

Microorganism, n (%) Day 2 (n = 50) Day 3 (n = 82) Day 4 (n = 77) Day 5 (n = 54) Day 6 (n = 31) Day 7 (n = 23) Day 8 (n = 23)
Staphylococcus aureus 18 (36) 35 (43) 28 (36) 23 (43) 19 (38) 8 (26) 6 (26)
Streptococcus pneumoniae 8 (16) 9 (11) 11 (14) 5 (9) 4 (8) 3 (10) 2 (9)
Haemophilus influenzae 10 (20) 14 (17) 16 (21) 14 (26) 9 (18) 4 (13) 3 (13)
Pseudomonas aeruginosa 3 (6) 1 (1) 5 (6) 5 (9) 2 (4) 3 (10) 5 (22)
Enterobacter 4 (8) 5 (6) 8 (10) 4 (7) 4 (8) 8 (26) 13 (39)
Others 18 (26) 24 (29) 17 (19) 16 (32) 10 (32) 4 (17) 2 (9)