background and objectives: this study was carried out with the objective of determining the genomic variability of p. aeruginosa strains isolated from patients suffering from cystic fibrosis or from environmental cultures collected from different locations in the unit they admitted. materials and methods: a total of 57 clinical and environmental p. aeruginosa isolates were genotyped by enteroba...

Ingestion of bacteria by oysters Crassostrea virginica and bactericidal activity of oyster hemocytes were studied using 4 environmental isolates (shellfish) and 3 clinical isolates (fecal) of Vibrio parahaemolyticus. Clinical isolates (2030, 2062, 2107) were obtained from the feces of patients with gastroenteritis who became ill during the 1998 food poisoning outbreak traced to consumption of r...

objective(s): the nosocomial infections by aspergillus species are associated with constructions and increased dust loads in hospital indoors. our main object was to find the environmental sources of aspergillus species causing hospital acquired infections. materials and methods: the clinical and environmental samplings were performed during 18 months from spring 2010 to summer 2011 in imam edu...

Among 120 Escherichia coli isolates from Thai patients, 37 and 9 isolates were extended-spectrum beta-lactamase (ESBL) and suspected ESBL producers respectively while 5 E. coli isolates from 120 Thai healthy adults were suspected ESBL producers. Integrase (intl1) gene was detected in 99% of the clinical and 87% of the non-clinical isolates. Among 37 ESBL producers, percent recovery of bla(TEM),...

Sixty-eight Burkholderia cepacia complex isolates recovered from the sputum of 53 cystic fibrosis patients and 75 isolates collected from the maize rhizosphere were compared to each other to assess their genomovar status as well as some traits related to virulence such as antibiotic susceptibility, proteolytic and hemolytic activities, and transmissibility, in which transmissibility is determin...

background and objectives: acinetobacter spp. are important causes of nosocomial infections. they possess various antibiotic resistance mechanisms including extended spectrum beta lactamases (esbls). the aim of this study was to determine antibiotic resistance profile of acinetobacter clinical isolates especially among esbl-producing strains and to investigate the antimicrobial effects of oleo-...

introduction: methicillin-resistant staphylococcus aureus (mrsa) can cause serious and life-threatening hospital- and community-acquired infections. colonized and infected patients represent the most important reservoir of mrsa in health care facilities. therefore, in this study, mrsa isolates collected from shohada hospital in tabriz were evaluated for the frequency of meca gene and their anti...