High prevalence of Helicobacter pylori mixed infections identified by multilocus sequence typing in Ningbo, China

High prevalence of mixed infections by Helicobacter pylori in Hong Kong: metronidazole sensitivity and overall genotype.

BACKGROUND Diversity in metronidazole susceptibility and genotypes of Helicobacter pylori have been reported with varying results in different areas. AIMS To investigate the prevalence of multiple strain infection in a symptomatic Chinese population and to determine the metronidazole susceptibility pattern and genotypic characteristics of these infecting strains. METHODS Gastric biopsies fr...

Clonal complexes of Campylobacter jejuni identified by multilocus sequence typing correlate with strain associations identified by multilocus enzyme electrophoresis.

Multilocus sequence typing (MLST) and pulsed-field gel electrophoresis (PFGE) with SmaI were used to subtype 55 isolates of Campylobacter jejuni from a diverse range of human and animal sources previously characterized by multilocus enzyme electrophoresis (MEE). MEE and MLST targeted 11 and 7 loci, respectively, and all loci were unique to each method. MEE, MLST, and PFGE identified 40, 37, and...

High prevalence of Helicobacter pylori

A high prevalence of metronidazole resistance in Helicobacter pylorn is reported in developing countries. This study examined whether migrants referred for diagnostic gastroscopy at a United Kingdom centre (n= 54), had a higher prevalence of metronidazole resistance than subjects born in the United Kingdom attending endoscopy (n=46). Records of nitroimidazole treatment prescribed in the United ...

Title High prevalence of mixed infections by Helicobacter pylori in Hong Kong: Metronidazole sensitivity and overall genotype

Major uropathogenic Escherichia coli strain isolated in the northwest of England identified by multilocus sequence typing.

A total of 88 uropathogenic Escherichia coli isolates, including 68 isolates from urine and 20 isolates from blood, were characterized by multilocus sequence typing (MLST). MLST has identified an important genetic lineage of E. coli, designated sequence type 131 (ST-131), represented by 52 of these isolates, 51 of which were resistant to extended-spectrum cephalosporins. ST-131 appears to be a ...