Evidence from a Nine-year Birth Cohort Study in Japan of Transmission Pathways of Helicobacter Pylori Infection

Overview

Journal J Clin Microbiol

Specialty Microbiology

Date 2000 May 2

PMID 10790131

Citations 16

Authors

H M Malaty

T Kumagai

E Tanaka

H Ota

K Kiyosawa

D Y Graham

T Katsuyama

Affiliations

Soon will be listed here.

Abstract

We examined the longitudinal changes of Helicobacter pylori infection within 46 families with children and 48 couples without children living in Japan. The study cohort was monitored from 1986 to 1994. H. pylori status was assessed by the presence of anti-H. pylori immunoglobulin G antibodies. At study entry, H. pylori prevalence in children with positive mothers was 23% versus 5% in children with negative mothers (odds ratio = 5.3; 95% confidence interval = 0.6 to 42.8). Seroconversion (rate of 1.5%/year) was evident only among children living with positive mothers and did not differ among adults living with or without children. These data strongly support the cluster phenomenon of H. pylori infection among families, the key role of the infected mothers in the transmission within families, and the importance of adult-child transmission and not vice versa.

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