NFGNBNon-Fermenting Gram-Negative Bacteria (microbiology)
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Among the 11 cases who were treated earlier for the same condition of CSOM, Proteus mirabilis was the highest forming 45.4% followed by Pseudomonas aeruginosa, Staphylococcus aureus and NFGNB all forming 18.1% each, Klebsiella species, Streptococcus pyogenes and Aspergillus niger formed 9.1% each.
Results: There were a total of 53 NFGNB that were isolated by convenient sampling.
In this study 971 non fermentative gram negative bacterial (NFGNB) isolates were obtained from all clinical samples.
Of the 5,437 blood specimens received during three months (November 2004 to January 2005) from various inpatient departments, 170 (13.7%) NFGNB were isolated from 1235 positive blood culture specimens.
Among the NFGNB, Pseudomonas aeruginosa was the commonest isolate 70.5% (24/34) followed by Acinetobacter baumannii 29.4% (10/34).
The NFGNB isolated were Pseudomonas aeruginosa (32.43%), Acinetobacter species (21.62%), and NFGNB other than P.
NFGNB are known to account for 15% of all bacterial isolates from clinical microbiological laboratory.
The non-fermentative Gram negative bacilli (NFGNB) are a group of aerobic, non-spore forming bacilli that either do not use carbohydrates as a source of energy or degrade them through metabolic pathways other than fermentation.
Acinetobacter (8.7%), Ecoli (5.2%), citro-bacter (4.1%), NFGNB (2.9%) proteus (2.9%), CONS (1.16%), streptococcus pyogenes and Enterobacter (0.6% each).