gram-negative

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gram-negative

[′gram¦neg·əd·iv]
(microbiology)
Of bacteria, decolorizing and staining with the counterstain when treated with Gram's stain.
References in periodicals archive ?
Carriage of the 'hospital' potential pathogens including aerobic Gram-negative bacilli (AGNB) (8) and methicillinresistant Staphylococcus aureus (MRSA) in the oropharynx and gastrointestinal tract is considered abnormal in healthy individuals and it is uncommon (9).
Rapid identification and susceptibility testing of Gram-negative bacilli from blood cultures using the Vitek.
In Vitro Susceptibilities of Aerobic and Facultatively Anaerobic Gram-Negative Bacilli Isolated from Patients with Intra-Abdominal Infections Worldwide: 2004 Results from SMART (Study for Monitoring Antimicrobial Resistance Trends).
Other organisms that were cultured included streptococci (groups B and F), as well as Gram-negative bacilli, none of which was significantly different among the HIV-infected and uninfected groups.
Poster # 3460: "Activity of a Novel Cationic Steroid Antimicrobial (CSA-13) Targeting Aerobic and Facultative Gram-negative Bacilli, Gram-Positive Anaerobes and Select Agent Surrogate Strains";
aureus, enterococci, mycobacteria, fungi, or gram-negative bacilli.
Subsequently, the aerobic bottles of 2 sets of blood cultures were positive for gram-negative bacilli, and subculturing yielded an oxidase-positive, gram-negative bacillus that grew rapidly on blood agar as a gray colony with a metallic sheen.
Nonfermenter group of organisms is a group of aerobic, non-sporeforming Gram-negative bacilli that either do not utilize carbohydrates as a source of energy or degrade them through metabolic pathways other than fermentation (3).
Q In our hospital, the infectious-disease specialists (all in the same group practice) insist that we do identification and susceptibility testing on all Gram-negative bacilli, Staphylococcus aureus, enterococci, and even coagulase-negative staphylococci in wound cultures regardless of their quantity or proportions (e.
Purulence and gram-negative bacilli in tracheal aspirates of mechanically ventilated very low birth weight infants.
The valvular culture grew gram-negative bacilli that were catalase positive and oxidase negative after 10 days on buffered charcoal yeast extract medium (AES Chemunes, Bruz, France).
Brink AJ, Feldman C, Richards GA, et al Emergence of extensive drug resistance (XDR) among Gram-negative bacilli in South Africa looms nearer.

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