background: to determine the prevalence of typhoidal and non-typhoidal salmonella species in hamadan city, west of iarn and detection of antibiotic susceptibility patterns of isolates. methods: in a cross-sectional descriptive study, 296 salmonella species including 192 strains of typhoidal salmonella and 104 strains of non- typhoidal salmonella were examined for serotyping and determining of a...

A set of 103 epidemiologically well-defined Acinetobacter baumannii isolates obtained from nine hospital outbreaks and 21 unrelated strains were characterized by pulsed-field gel electrophoresis (PFGE) of total genomic DNA digested with ApaI. Among outbreak strains, eight different patterns and five possible variants were identified by PFGE. Results were compared with those from traditional typ...

Antimicrobial resistance to penicillin and macrolides in Streptococcus pneumoniae has increased in the United States over the past decade. Considerable geographic variation in susceptibility necessitates regional resistance tracking. Traditional active surveillance is labor intensive and costly. We collected antibiogram reports from North Carolina hospitals and assessed pneumococcal susceptibil...

To determine antimicrobial drug resistance patterns, we characterized nontyphoidal Salmonella enterica strains isolated in Liverpool, UK, January 2003 through December 2009. Decreased susceptibility to ciprofloxacin was found in 103 (20.9%) of 492 isolates. The lower susceptibility was associated with ciprofloxacin treatment failures and with particular serovars and phage types often acquired d...

Susceptibility testing and serotyping were performed on 57 isolates of Mycobacterium avium-M. intracellulare from patients with acquired immunodeficiency syndrome (AIDS) and 75 isolates from patients without AIDS. Susceptibility patterns and serotypes of AIDS isolates were significantly different from those of non-AIDS isolates. These results may partially explain the poor therapeutic response ...

Background: Brucellosis is an endemic zoonotic disease in the Middle East. This study intended to design a uniplex PCR assay for the detection and differentiation of Brucella at the species level and determining the antibiotic susceptibility pattern of Brucella in Iran. Methods: Sixty-eight Brucella specimens (38 an...

Introduction: Acinetobacter species are important opportunistic pathogens, widely spread in hospitals' environment and responsible for different health care associated infections. Because of its ability to rapidly develop resistance to the major groups of antibiotics, treatment of Acinetobacter infections is difficult and antibiotic susceptibility tests can help in choosing the best antibiotics...

A range of 49 bacteriocins was used to type 311 strains of Clostridium perfringens isolated from food poisoning outbreaks. Strains of same serotype within an outbreak showed similar patterns of susceptibility to bacteriocins, whereas strains of different serotype isolated from different sources produced many variations in bacteriocin susceptibility patterns. The 311 strains, along with isolates...

OBJECTIVE Although 2 widely used susceptibility assays have been developed, their precision and sensitivity have not been assessed. DESIGN AND METHODS To assess the precision of the Antivirogram and PhenoSense assays, we examined susceptibility results of HIV-1 isolates lacking drug resistance mutations and containing matching patterns of drug resistance mutations. To assess sensitivity, we d...

It has long been accepted that modern reproductive patterns are likely contributors to breast cancer susceptibility because of their influence on hormones such as estrogen and the importance of these hormones in breast cancer. We conducted a meta-analysis to assess whether this 'evolutionary mismatch hypothesis' can explain susceptibility to both estrogen receptor positive (ER-positive) and est...