[Non-fermentative gram-negative bacilli: their distribution to clinical materials and antibiotic susceptibility...

A total of 7898 non-fermentative Gram-negative bacilli were isolated from various clinical materials. Pseudomonas (7526) was the most common among them. Alcaligenes faecalis (273), Acinetobacter sp. (93) and Flavobacterium (6) were the other non-fermentative Gram-negative bacilli. Most of them were found in urine and pus cultures, however they were also isolated from sputum, blood, and cerebrospinal fluid. Gentamicin was the most effective antibiotic in vitro. Fifty four per cent of Pseudomonas, 100% of Acinetobacter, and 70% of Alcaligenes faecalis were inhibited by tobramycin.