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...

introduction: vaginitis is an inflammatory and infectious disease in human host that involved vaginal mucosa. increase of resistance to various antibacterial agent has been very significant in three or four recent decades and this important subject reveals the use of new and natural sources such as plants with medical and antimicrobial property for eradication of these infections. therefore, th...

background :  science the discovery of antibiotic, the incidence of antibiotic resistance has been inevitable. although there has been many study in these area but problem still exists. the aim of this research was to study the serotyping and multiple antibiotic resistance patterns of shigella sonnei isolated from diarrheal stool of children.   methods :  the stool samples of children from zero...

introduction: escherichia coli (e.coli) as a main cause of both nosocomial and community-acquired infections in humans have a relative potential to develop resistance. nowadays, most infections caused by esbl-producing e.coli (esblec) had mostly been described as nosocomial acquired or nursing home related. in this study, we employed e-test assay to detect antibiotic resistance of e.coli strain...

abstract background: escherichia coli, known as a clinically significant bacteria, can cause a wide range of infections, including urinary tract infections (utis), blood stream infections (bsis), and can frequently be isolated from various clinical specimens. evaluation of antimicrobial resistant pattern is a necessary action, especially about such bacteria which are frequent and life threateni...

background and objectives: e. coli and klebsiella spp. are recognized as most prevalent bacteria causing urinary tract infection (uti), the most common bacterial infection. decreasing of antimicrobial susceptibility in urinary pathogens has made difficulty in treatment of uti. the aim of this study was to determine antibiotic susceptibility of e. coli and klebsiella spp. isolated from urine of ...

background: escherichia coli (e. coli) is the most frequent infecting organism in acute infection. so, knowledge about the frequency and distribution of urinary tract infection (uti) is important to improve infection control measures. the aim of this research was to determine the prevalence of bacteria isolated from urinary tract infection (uti) in patients and determination of the antibiotic s...

background extended-spectrum β-lactamase (esbl)-producing klebsiella pneumonia has become widespread in hospitals and is increasing in community settings. most of k. pneumonia that harbor these enzymes, display resistance to other unrelated antimicrobial agents and thus, often pose a therapeutic dilemma. objectives this study was conducted to determine the prevalence of esbl-producing k. pneumo...

background: urinary tract infection (uti) is one of the most prevalent infectious diseases and escherichia coli is its common cause. the aim of this study was to assess the resistance patterns of e.coli in urinary tract infections and to determine the susceptibility of e.coli to commonly used antimicrobials and also to evaluate the options for empirical treatment of uti. methods: this study was...

background methicillin -resistant staphylococcus aureus (mrsa) is associated with serious infections. having the ability of biofilm-formation decrease their susceptibility to antibiotics. objectives the aim of this study was to determine the prevalence of biofilm formation among mrsa isolated from nasal carriers in the beheshti teaching hospital in kashan, iran. materials and methods a cross-se...