1887

Abstract

Summary

An enzyme linked immunosorbent assay (ELISA) with a sonicated suspension of as antigen was used to detect anti- antibodies in 517 patients without dyspepsia or peptic ulcer symptoms and 401 healthy blood donors. The criterion of seropositivity was determined from a receiver operating curve computed with the values of optical densities of 48 sera from dyspeptic patients with proven helicobacter-associated gastritis and 16 sera from dyspeptic patients with proven helicobacter-associated gastritis and 16 sera from dyspeptic patients with normal antral mucosa and no microbiological or histological evidence of infection. The 227 (44%) seropositive persons amongst the patient group appeared to be significantly higher than the 142 (35%) sera with antibodies in the blood donors tested (p≪0.03), even when adjustment was made for increasing age. We conclude that the prevalence of antibodies against increases with age and that although antibodies are more prevalent in patients attending a hospital than in healthy blood donors, seropositivity suggestive of current or past infection can be found in one third of a randomly chosen population of blood donors.

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/content/journal/jmm/10.1099/00222615-32-2-105
1990-06-01
2020-01-21
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http://instance.metastore.ingenta.com/content/journal/jmm/10.1099/00222615-32-2-105
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