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Vaccine effectiveness of heterologous CoronaVac plus BNT162b2 in

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Farmacovigilancia de vacunas para COVID-19 - Pfizer-BioNTech

COVID-19 vaccine update: vaccine effectiveness, SARS-CoV-2 variants, boosters, adverse effects, and immune correlates of protection, Journal of Biomedical Science

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Farmacovigilancia de vacunas para COVID-19 - Sinovac

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Vaccine effectiveness of two and three doses of BNT162b2 and CoronaVac against COVID-19 in Hong Kong

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Heterologous versus homologous COVID-19 booster vaccination in previous recipients of two doses of CoronaVac COVID-19 vaccine in Brazil (RHH-001): a phase 4, non-inferiority, single blind, randomised study - ScienceDirect

The effectiveness of COVID-19 vaccines against severe cases and deaths in Brazil from 2021 to 2022: a registry-based study - The Lancet Regional Health – Americas