title: Gram-negative non-fermenting bacteria from food-producing animals are low risk for hospital-acquired infections.
abstract: The aim of this study was to investigate possible indications of epidemiological relationships between Pseudomonas aeruginosa and Acinetobacter baumannii isolated from food-producing animals and those of clinical origin. Screening for P. aeruginosa and A. baumannii isolates from food-producing animals was carried out on 1381 samples. Susceptibility testing and PCR amplification of resistance genes were determined. Isolate clonal relatedness was established by PFGE. Forty-one P. aeruginosa and 16 A. baumannii were detected. All P. aeruginosa isolates were sensitive to ciprofloxacin, ceftazidime and piperacillin/tazobactam and seven isolates had low-level imipenem resistance. All A. baumannii isolates were sensitive to imipenem, meropenem, ciprofloxacin and piperacillin/tazobactam but were resistant to ceftazidime. The imipenem-resistant P. aeruginosa and ceftazidime-resistant A. baumannii had different PFGE patterns compared to those of human origin. Based on the findings presented here, animal isolates were not multidrug resistant and they do belong to a different pool from those of humans.
authors.affiliation: Molecular Chemotherapy, Centre for Infectious Diseases, University of Edinburgh, UK.
authors.forename: A
authors.initials: A
authors.lastname: Hamouda
authors.forename: L
authors.initials: L
authors.lastname: Vali
authors.forename: S G B
authors.initials: SG
authors.lastname: Amyes
mesh_terms: D040981:Acinetobacter baumannii / Q000187:drug effects* / Q000302:isolation & purification*; D000818:Animals; D002417:Cattle / Q000382:microbiology; D003428:Cross Infection / Q000382:microbiology*; D003611:Dairy Products / Q000382:microbiology; D004352:Drug Resistance, Microbial; D016521:Electrophoresis, Gel, Pulsed-Field; D005516:Food Microbiology; D006801:Humans; D008460:Meat / Q000382:microbiology; D016133:Polymerase Chain Reaction; D011550:Pseudomonas aeruginosa / Q000187:drug effects* / Q000302:isolation & purification*; D012756:Sheep / Q000382:microbiology; D013552:Swine / Q000382:microbiology