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Unit 5 Chapter 21

Nonfermenting and Miscellaneous Gram-Negative Bacilli

Pseudomonas aeruginosa fluorescent, grapelike odor, blue-green pigment, oxidase and catalase positive, oxidizes carbohydrates; wound infections, burns, pulminary infections, endocarditis, ear infections, skin rashes. toxins, proteases, hemolysin, drug resistant
Pseudomonas florescens and putida low virulence, flourescent, infections: UTIs, post surgical abcesses, Empyema, septic arthritis, and wound infections
Acinetobacter second most common isolate of these organisms, sometimes a normal flora 25% of adults, found in hospitals (venilators, humidifiers, catheters), UTIs, pneumonia, endocarditis, septiciemia, meningitis, wounds, burns, eye infections
Stentrophomoans maltophilia third most common isolate of these organisms, pneumonia, endocarditis, abcterimia, rarely meningitis and UTIs; catalase +, oxidase -, DNase+ esculin+ lysine decarbooxylase + gelatin hydrolysis
Burkholderia identifiers nosocomial pathogen, pneumonia particularly in CF patients, endocarditis, UTIs, osteomyelotis, dermatitis, wound infections; oxidase- negative, motile, utilizes glucose, maltose, lactose, mannitol, lysine decarbonase + OCD+ ADH+, gram-negative bacillus
Burkholderia organisms cepacia:plant pathogens; gladioli: resembles B. cepacia, found in CF and CGD patients; mallei: causes glanders; supportive or acute pulmonary infections; pseudomallei: melioidosis; ingestion, inhalation, or inoculation; possible agent of bioterrorism
Created by: luceroapril