Table 2.

Bacteriology of VAP

Species	Number of cases; n = 77
Gram-positive:
Staphylococcus aureus
(among them 1 methicillin-resistant)	29 (37.7%)
Streptococcus pneumoniae	4 (5.2%)
Other streptococci	5 (6.5%)
Gram-negative:
Haemophilus influenzae	8 (10.4%)
Pseudomonas aeruginosa	8 (10.4%)
Klebsiella sp.	7 (9.1%)
Escherichia coli	6 (7.8%)
Enterobacter sp.	3 (3.9%)
Proteus sp.	3 (3.9%)
Acinetobacter sp.	1 (1.3%)
Morganella morganii	1 (1.3%)
Citrobacter freundii	1 (1.3%)
Branhamella catarrhalis	1 (1.3%)

VAP, ventilator-associated pneumonia.