Longer-term effectiveness of a heterologous coronavirus disease 2019 (COVID-19) vaccine booster in healthcare workers in Brazil.
Alexandre Rodrigues MarraJoão Luiz MiragliaDaniel Tavares MalheiroYang GuozhangVanessa Damazio TeichElivane da Silva VictorJoão Renato Rebello PinhoAdriana Serra CyprianoLaura Wanderly VieiraMiria PolonioRafael Herrera OrnelasSolange Miranda de OliveiraFlavio Araujo BorgesSilvia Cristina Cassiano OlerVictória Catharina Volpe RicardoAline Miho MaezatoGustavo Yano CalladoGuilherme de Paula Pinto SchettinoKetti Gleyzer de OliveiraRúbia Anita Ferraz SantanaFernanda de Mello MaltaDeyvid AmgartenAna Laura BoechatTakaaki KobayashiJorge L SalinasMichael B EdmondLuiz Vicente RizzoPublished in: Antimicrobial stewardship & healthcare epidemiology : ASHE (2023)
Heterologous COVID-19 vaccines were effective for up to 180 days in preventing COVID-19 in the SARS-CoV-2 delta and omicron variant eras, which suggests the need for a second booster.