background and objective: methicillin resistance in staphylococcus aureus is an increasingly important clinical problem. a chromosomal gene, meca, mediates resistance to penicillinase-resistant penicillins such as methicillin and oxacillin in staphylococcus aureus. we evaluated the validity of disk diffusion test by using oxacillin, methicillin and cefoxitin disks with consideration of the pres...

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...

objective: punica granatum, commonly known as pomegranate, has emerged as a medicinal plant with potential antimicrobial activity. the present study was planned to evaluate this activity against both gram positive staphylococcus aureus (s. aureus) and negative pseudomonas aeruginosa (p. aeruginosa) bacteria as well as against pathogenic yeast, candida albicans (c. albicans). material and method...

introduction : staphylococcus aureus colonization has been recognized as one of the most important risk factors for subsequent infections with this microorganism. in this study, we intended to identify all patients who were mrsa-positive upon admission and compare the prevalence of mrsa colonization on different days of study admitted in imam reza hospital in mashhad, iran. methods : this cross...

objective: methicillin-resistant staphylococcus aureus is a major cause of nosocomial and community-acquired infections. aminoglycosides are potent bactericidal agents that are often used in combination with either a β-lactam or a glycopeptide, especially in the treatment of staphylococcal endocarditis. the main mechanism of aminoglycoside resistance in staphylococci is drug inactivation by cel...

objectives: staphylococcus aureus is an important cause of serious infection in both hospital and the community. methicillin-resistant s. aureus (mrsa) is associated with high morbidity and mortality rates with rapid development of resistance. there is a need for early and reliable detection of mrsa infection to direct antibiotic therapy, and more effectively control cross-infection. in this st...

Tigecycline is a new glycylcycline antibiotic structurally similar to minocycline antibiotic. It has broad spectrum activity, including Staphylococcus aureus infections. This is the first study that evaluated the activity of Tigecycline against Staphylococcus aureus isolated from biological samples in Iran. In vitro activity of tigecycline against 160 Staphylococcus aureus including 99 methicil...

Staphylococcus chromogenes is one of the main coagulase-negative staphylococci isolated from mastitis of dairy cows. We describe S. chromogenes isolates that can clot plasma. Since the main pathogen causing mastitis is coagulase-positive Staphylococcus aureus, the coagulase-positive phenotype of S. chromogenes described here can easily lead to misidentification.