conclusions our results illustrated the presence of clonal groups of highly gentamicin-resistant strains of mrsa in hospitals in tehran. the php typing method provided useful information for both clonal dissemination and determining the epidemiological links of the clonal groups of the mrsa strains. materials and methods a total of 301 s. aureus isolates were collected during january to novembe...

results two- to four-fold decrease in minimum inhibitory concentration (mic) and two-fold increase in accumulation were observed for etbr in the presence of cccp for 67% (8) of 12 mdr strains. with cccp, two- to four-fold decrease in mic and 1.4- to 1.8-fold increase in the accumulation of β-lactames, tet, cip and mtz were obtained for 42% (5) of the mdr strains. six, five and three of the 12 m...

background hospital patients who are nasal carriers of methicillin-resistant staphylococcus aureus (mrsa) are a high-risk potential threat to themselves and other hospitalized patients. the high antibiotic resistance of these isolates renders the treatment of related infections difficult. objectives the present study, for the first time investigated the prevalence of mrsa isolates in nasal carr...

conclusions the β-lactamase disk test is appropriately sensitive to detect esbls in mdr isolates of e. coli. background most urinary tract infections (utis) are caused by escherichia coli (e. coli) species. due to infections outbreaks of e. coli strains with multiple mechanisms of resistance to β-lactam antibiotics, the sensitivity of confirmatory tests to detect the extended spectrum β-lactama...

background and purpose: actinomycetes have been discovered as source of antifungal compounds that are currently in clinical use. invasive aspergillosis (ia) due to aspergillus fumigatus has been identified as individual drug-resistant aspergillus spp. to be an emerging pathogen opportunities a global scale. this paper described the antifungal activity of one terrestrial actinomycete against the...

objective(s)staphylococcus aureus is a prevalent pathogen worldwide. methicillin resistant s. aureus (mrsa), which is usually multi-resistant in hospitals, has been a daunting challenge for clinicians for more than half a century. the aim of this systematic review and meta-analysis is to determine the relative frequency (rf) of mrsa in different regions of iran.materials and methodssearch terms...

determination of drug resistance rate, as a new major problem in patients with typhoid fever is inevitable for treatment of the disease. in a cross-sectional study, during march 1994 till february 1995, a total of 39 patients with typhoid fever admitted to dept. of infections diseases, emam khomeini hospital, and were examined for the rate of resistance to routine drugs usually used for treatme...

abstract food preservatives are often added to food as preservation method. mostly one preservative alone cannot preserve a product effectively. so it is required to create a preservation system to overcome limitations derived from each preservative. using proper selection of different preservatives may lead to significant practical benefits. in this investigation, resistant strain of bacillus ...

during this research, bacteria resistant to metals were evaluated in the soil of isfahan province.according to the sampling locations the soils are classified as agricultural soils, non-agricultural soils andsediments of the zayanderood riverbank. the bacteria resistant to lead (2 mm), copper (5 mm), cadmium(0.5 mm) and arsenic (5 mm) were identified, and then during later stages, the minimum i...

objectives the study was carried out in a tertiary care center in tehran, iran to identify the frequency of hospital acquired methicillin resistant staphylococcus aureus (ha-mrsa ) colonization and its antibiotic susceptibility pattern and molecular characteristics. patients and methods this point-prevalence study was performed on 631 children who were admitted for at least 48 hours in differen...