Brazilian pilot program tests chikungunya vaccine effectiveness
NCT ID NCT07347002
First seen Jan 18, 2026 · Last updated May 25, 2026 · Updated 24 times
Summary
This study looks at how well the VLA1553 vaccine prevents chikungunya disease in Brazil. Researchers will compare vaccinated and unvaccinated people who have chikungunya-like symptoms. The goal is to see if the vaccine reduces infections in a real-world setting. About 1,200 adults in areas where the vaccine is offered will take part.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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Centro de Pesquisas Clínicas Universidade Federal Sergipe, Hospital e Maternidade São João de Deus
Laranjeiras, Sergipe, 49060-025, Brazil
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Fundação Faculdade Regional De Medicina De São José Do Rio Preto
São Pedro, São Paulo, 15090-000, Brazil
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Universidade Federal Do Ceará
Fortaleza, Ceará, 60430-160, Brazil
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Universidade Federal de Minas Gerais, CT Terapias Avançadas e Inovadoras
Belo Horizonte, Minas Gerais, 31270-901, Brazil
Conditions
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