Table 1.

Gram negative bacilli isolated during the study

Gram Negative Bacilli	Frequency
	Number(328)	Percentage
E. coli	118	35.98
Klebsiella pneumonia	72	21.95
Pseudomonas aeruginosa	64	19.51
Acinetobacter baumanii	30	9.15
Proteus mirabilis	18	5.49
Proteus vulgaris	18	5.49
Providencia rettgerii	6	1.83
Citrobacter freundii	2	0.61