Table 2.

Distribution of gram-negative bacteria.

Pathogenic bacteria	Number of strains	Ratio (%)
Klebsiella pneumoniae	47	24.48%
Escherichia coli	41	21.35%
Acinetobacter baumannii	32	16.67%
Pseudomonas aeruginosa	32	16.67%
Stenotrophomonas maltophilia	7	3.65%
Proteus mirabilis	5	2.60%
Enterobacter aerogenes	4	2.08%
Serratia marcescens	4	2.08%
Enterobacter cloacae	4	2.08%
Corynebacterium striatum	3	1.56%
Citrobacter freundii	2	1.04%
Klebsiella acidophilus	2	1.04%
Pseudomonas fluorescens	2	1.04%
Others	7	3.65%
Total	192