Isolates of Staphylococcus aureus from bovine clinical and subclinical mastitis were tested for ß-lactamase production and antimicrobial susceptibility pattern. Beta-lactamase production was assessed by penicillin-phenol red acidometric test. Antimicrobial susceptibility was tested by measuring MIC by Resazurin dye broth microdilution method. Forty per cent of isolates tested were positive for ...

pseudomonas aeruginosa is an important life-threatening nosocomial pathogen and plays a prominent role in serious infections in burned patients. the current study was undertaken to characterize p. aeruginosa strains isolated from burned patients in tehran, iran. the study was conducted in a major burn center in tehran, iran in 2007. a total of seventy specimens obtained from different clinical ...

background: the main objective of this study was to determine the prevalence and antimicrobial resistance profiles of the main bacteria which are responsible forurinary tract, blood stream, cerebrospinal fluid, lower respiratory tract, and wound infections in hamadan province in the west of iran. materials and methods:in this study,a total of 773 urinary tract, 273 blood stream, 13 cerebrospina...

this study investigated the antibacterial resistance among enterococci isolated in tehran hospitals. a total of 277 enterococcus faecalis, 123 enterococcus faecium and 13 isolates of other enterococcal strains were collected from 1 march 2002 to 15 april 2004 from three teaching hospitals of tehran university of medical sciences. the minimum inhibitory concentrations (mic) of tested antibiotics...

coagulase-negative staphylococci (cns) are a main cause of nosocomial infection. the main purpose of this study was to determination of frequency of cns isolates in in hospitalized patients and their susceptibility pattern to antimicrobial agents. during 11 month study, 65 cns clinical isolates were recovered from hospitalized patients in different wards of hospital. in vitro susceptibility of ...

background and objectives: klebsiella pneumoniae ( k. pneumoniae ) is an opportunistic microorganism. this study aimed to investigate the presence of mag a gene and antimicrobial susceptibility in k. pneumoniae . materials and methods: 195 clinical specimens were collected from hospitals of shahrekord, iran. bacterial culture, biochemical diagnostic standard test, determination of antibiotic se...

background ventilator- associated pneumonia (vap) continues to complicate the course of 8-28 % patients receiving mechanical ventilation. the mortality rate for vap is high, ranges from 24-50% and can reach 76% in some specific settings or when lung infection is caused by high risk pathogens. the etiologic agents widely differ according to the population of patients in an intensive care unit, d...

streptococcus agalactiae is a major contagious pathogen causing bovine sub-clinical mastitis. the present investigation was carried out to determine some phenotypic characteristics of the s. agalactiae strains isolated from bovine mastitis cases in dairy cows of shahrekord in the west-center of iran. one hundred eighty california mastitis test (cmt) positive milk samples were bacteriologically ...

urine specimens collected from in-patients and out-patients in urmia imam hospital, northwest iran, were cultured on blood agar and eosin methylene blue agar. isolated bacteria were identified according to standard microbiological tests and then subjected to sensitivity testing according to routine method of disk agar diffusion technique. out of 8044 and 10425 urine specimens, 8.7% and 11.9% we...