Brazil Pre-Vaccination survey gauges chikungunya immunity
NCT ID NCT07163845
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study will test over 5,300 people in about 10 Brazilian municipalities for antibodies to the chikungunya virus before a pilot vaccination campaign with the VLA1553 vaccine. The goal is to see how many people have already been exposed to the virus and how that might affect vaccine uptake. Participants are healthy individuals aged 2 and older living in selected areas.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this study could help public health officials better plan vaccination campaigns against chikungunya in Brazil.
What could go wrong
This is an observational study, not a treatment trial. It only measures existing immunity and does not test the vaccine itself.
Disclaimer
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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.
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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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
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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