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Jpn J Infect Dis. 2015;68(6):494-503. doi: 10.7883/yoken.JJID.2014.321. Epub 2015 Apr 10.

Seroprevalence of Helicobacter pylori and Hepatitis A Virus among Children in Rural Central Taiwan.

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Department of Pediatrics, Chang-Bing Show Chwan Memorial Hospital.


Helicobacter pylori and hepatitis A virus (HAV) are thought to have similar routes of transmission and epidemiology. This study investigated the seroprevalence of these 2 pathogens among children in rural, central Taiwan. Serum samples were collected from 856 children between 2010 and 2012 and levels of anti-HAV and anti-H. pylori antibodies were measured by ELISA. Questionnaires were used to investigate possible risk factors. The overall H. pylori and HAV infection rates were 6% and 0.8%, respectively. There was a significant difference in H. pylori infection rates (P value=0.008), but not HAV infection rates, between different age groups. H. pylori infection rates were significantly higher in children whose mothers had lower education levels. In contrast, HAV infection rates were significantly higher in children whose fathers had lower education levels. The risk of HAV infection was also 14.20-fold higher in children whose family members had traveled to China or Southeast Asia. No significant correlation was found between H. pylori and HAV seropositivity. The seroprevalences of H. pylori and HAV were low in rural central Taiwan. Universal HAV vaccination is highly recommended to prevent outbreak due to low seroprevalence.

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