Chikungunya vaccine safety in pregnancy under review

NCT ID NCT07414524

First seen Feb 24, 2026 · Last updated May 15, 2026 · Updated 12 times

Summary

This study looks at the safety of a chikungunya vaccine (VLA1553) given to pregnant women in Brazil. Researchers will track pregnancy and baby health outcomes for up to 12 weeks after birth in 200 vaccinated women and compare them to a similar group of pregnant women who received routine vaccines. The goal is to see if the vaccine causes any problems during pregnancy or for the baby.

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