Table 2.

Pathogens associated with ventilator-associated pneumonia

Pathogen	Number of patients (%)
Gram-positive bacteria	103 (78.6%)
Staphylococcus aureus	59 (45.0%)
MRSA	20 (15.3%)
Streptococcus pneumonia	4 (3.1%)
Other streptococci	44 (33.6%)
Corynebacterium sp.	15 (11.5%)
Gram-negative bacteria	75 (57.3%)
Klebsiella sp.	15 (11.5%)
Haemophilus influenza	14 (10.7%)
Enterobacter sp.	11 (8.4%)
Escherichia coli	10 (7.6%)
Citrobacter sp.	5 (3.8%)
ESBL-producing enterobacteriaceae	2 (1.5%)
AmpC-producing enterobacteriaceae	1 (0.8%)
Pseudomonas aeruginosa	24 (18.3%)
Acinetobacter baumannii	2 (1.5%)
Serratia marcescens	2 (1.5%)
Stenotrophomonas maltophilia	1 (0.8%)
Other Gram-negative bacteria	4 (3.1%)

ESBL extended spectrum beta-lactamase, MRSA methicillin-resistant Staphylococcus aureus