Although numerous reports on bacteriophages for staphylococci of human origin have appeared, none could be found regarding phages active against staphylococci from bovine sources. This laboratory has been concerned with various phases of bovine mastitis, hence it was of interest to investigate the occurrence and role of bacteriophage in staphylococcal mastitis. While this type of mastitis is pr...

background coagulase-negative staphylococci (cons) are opportunistic pathogens. methicillin resistance is common in cons and may play an important role as reservoir of staphylococcal cassette chromosome mec (sccmec) for staphylococcus aureus. objectives the aim of this study was to determine molecular characteristics of nasal carriage of methicillin-resistant coagulase negative staphylococci am...

background and objectives: accurate designation of antimicrobial susceptibility pattern of the infecting microorganisms is an important crucial factor in making appropriate therapeutic decisions. macrolide, lincosamide and streptogramin b antibiotics are in a family, reserved as an alternative approach in treatment of resistant gram positive cocci. amongst them, clindamycin has been considered ...

coagulase-negative staphylococci (cons) have been identified as a major cause of nosocomial infections. nasal carriage of cons in nurses and physicians is known to be an important risk factor for potential hospital infections. this study was carried out to investigate the prevalence of nasal carriage of uncommon coagulase-negative staphylococci among nurse and physician staffs of tehran univers...

patients and methods: all samples sent to the lab were routinely processed according to standard microbiological procedures and the cultures yielding growth of cons were selected for the study. all samples containing cons collected over a 2 year-period, were included irrespective of patients' age and gender. the antibiogram of the organisms was recorded according to clsi guidelines and the rati...

staphylococci isolated from 98 mastitic cow’s milk samples were analyzed for the production of alpha,beta and delta-hemolysin on sheep, bovine and horse red blood cells and in vitro susceptibility to several antimicrobial agents. out of a total of 18 isolated strains, 100% demonstrated hemolytic activity either alone or in combined forms. among 8 isolates of s. aureus 3 isolates produced α/β an...

mammary secretions of 913 quarters from 229 pregnant holstein heifers were obtained aseptically to determine the prevalence of coagulase-negative staphylococci isolated during periparturient period. quarter samples were collected 14 to 10 days before expected parturition. analysis of culture data indicated that 78.5% (717/913) of samples were negative, 20.5% (187/913) contained coagulase-negati...

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 ...

Vancomycin resistance has been reported in clinical isolates of both coagulase-negative staphylococci and Staphylococcus aureus. The emerging threat of widespread vancomycin resistance poses a serious public health concern given the fact that vancomycin has long been the preferred treatment of antibiotic-resistant gram-positive organisms. Though major efforts are now being focused on improving ...

Staphylococci and streptococci are leading causes of healthcare community-acquired bacterial infections worldwide. Within each genus, virulent species such as Staphylococcus aureus, Streptococcus pyogenes pneumoniae associated with diverse syndromes superficial infection, invasive infection exotoxin production. less coagulase-negative staphylococci viridans common harmless human commensals but ...