helicobacter pylori: primary susceptibility to clarithromycin in vitro in nova scotia.resistance to antimicrobial agents is a major determinant of the efficacy of regimens to eradicate helicobacter pylori. clarithromycin (cla) has become one of the most commonly used antibiotics for treatment of h pylori infection. in this study, the rate of primary resistance to cla in h pylori isolated from patients was determined. one hundred sixty-two strains were recovered from patients before treatment. strains were grown and inoculated onto mueller-hinton agar with 7% sheep blood. cla epsi ...19979218854
helicobacter pylori: populations and cohorts. 19947996012
increasing prevalence of helicobacter pylori infection with age: continuous risk of infection in adults rather than cohort remains unclear whether acquisition of helicobacter pylori is due to a continuous risk of acquiring the infection or a cohort effect. in this prospective 3-year cohort study, the seroprevalence, conversion, and reversion of h. pylori infection as determined by igg antibodies was examined. the cohort consisted of 316 randomly selected, nonpatient subjects aged 18-72 years who each provided at least 2 suitable samples. seroprevalence of h. pylori increased from 21% in the third decade to 50% in ...19948106778
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