One shot enough? thai kids' hepatitis a immunity tested years later
NCT ID NCT07032610
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study follows 60 healthy Thai children and teens who received a single dose of a live-attenuated hepatitis A vaccine about a year ago. Researchers want to see how many still have protective antibodies and at what levels. The goal is to understand long-term immunity and help decide if this vaccine should be added to Thailand's routine immunization schedule.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Department of Pediatrics, Faculty of Medicine, Chiang Mai University
Chiang Mai, 50200, Thailand
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