POLIO

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Not yet recruiting 1 Completed 1

Scientists track kids for 5 years to see if vaccines keep working

Knowledge-focused Not yet recruiting

This study aims to see if protection from several important childhood vaccines lasts for five years. Researchers will check antibody levels in the blood of 600 Chinese children who received the vaccines five years ago. The goal is to understand how long-term immunity works for po…

Matched conditions: POLIO

Sponsor: China National Biotec Group Company Limited • Aim: Knowledge-focused

Last updated Mar 30, 2026 14:30 UTC

POLIO

Get alerted when new POLIO trials appear

Scientists track kids for 5 years to see if vaccines keep working