Extended-spectrum β-lactamases (ESBLs) are a rapidly evolving group of β-lactamases
which share the ability to hydrolyze third-generation cephalosporins and aztreonam yet are …

Antibiotics are among the most successful group of pharmaceuticals used for human and
veterinary therapy. However, large amounts of antibiotics are released into municipal …

Extended-spectrum β-lactamases (ESBLs) are a group of plasmid-mediated, diverse,
complex and rapidly evolving enzymes that are posing a major therapeutic challenge today …

Strains of Enterobacteriaceae producing an extended spectrum β‐lactamase have become
a concern in medical bacteriology as regards both antimicrobial treatment and infection …

The clinical microbiology laboratory is often a sentinel for the detection of drug resistant
strains of microorganisms. Standardized protocols require continual scrutiny to detect …

Extended-spectrum β-lactamase (ESBL) producing gram-negative bacilli are a growing
concern in human medicine today. When producing these enzymes, organisms (mostly K …

Background Klebsiella pneumoniae strains have been divided into two major categories:
classical K. pneumoniae, which are frequently multidrug-resistant and cause hospital …

Two hundred and twenty-five healthy German volunteers traveling to 53 different countries
(mostly in Asia, Africa and South America) were enrolled in a prospective cohort study. Stool …

Background. Studies about transmission rates of extended-spectrum β-lactamase (ESBL)–
producing Enterobacteriaceae in hospitals and households are scarce. Methods. Eighty-two …

Extended-spectrum β-lactamases (ESBLs) are plasmid-mediated bacterial enzymes that
confer resistance to a broad range of β-lactams. They are descended by genetic mutation …