Frequency of nonfermentative gram-negative Bacilli isolated from clinical materials of pacients at Universidade Federal do Ceará Hospital Complex - Brazil

RESUMO

Among one thousand eight hundred and thirty-four Gram-negative bacilli, isolated at UniversidadeFederal do Ceará hospital complex-Brazil, from January 1995 to February 1996, 456 (24,8 per cent) were Nonfermentative Gram-Negative Bacilli (NFGNB). This study reports their identification to the species level and their frequency as well. Thirteen genera and thirty species were identified and Pseudomonas aeruginosa was the most frequent species (69,95 per cent), followed by Acinetobacter baumannii (5,48 per cent) and by Acinetobacter lwoffii (3,95 per cent). Among the identified P.aeruginosa strains, (94,1 per cent) produced pigment but (7,9 per cent) of them produced pigment only after being cultivated several times. The frequency of the most species was similar to that reported in the literature