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Nat Commun ; 15(1): 3738, 2024 May 03.
Artigo em Inglês | MEDLINE | ID: mdl-38702297

RESUMO

Whole virus-based inactivated SARS-CoV-2 vaccines adjuvanted with aluminum hydroxide have been critical to the COVID-19 pandemic response. Although these vaccines are protective against homologous coronavirus infection, the emergence of novel variants and the presence of large zoonotic reservoirs harboring novel heterologous coronaviruses provide significant opportunities for vaccine breakthrough, which raises the risk of adverse outcomes like vaccine-associated enhanced respiratory disease. Here, we use a female mouse model of coronavirus disease to evaluate inactivated vaccine performance against either homologous challenge with SARS-CoV-2 or heterologous challenge with a bat-derived coronavirus that represents a potential emerging disease threat. We show that inactivated SARS-CoV-2 vaccines adjuvanted with aluminum hydroxide can cause enhanced respiratory disease during heterologous infection, while use of an alternative adjuvant does not drive disease and promotes heterologous viral clearance. In this work, we highlight the impact of adjuvant selection on inactivated vaccine safety and efficacy against heterologous coronavirus infection.


Assuntos
Hidróxido de Alumínio , Vacinas contra COVID-19 , COVID-19 , SARS-CoV-2 , Vacinas de Produtos Inativados , Animais , Vacinas contra COVID-19/imunologia , Vacinas contra COVID-19/administração & dosagem , Feminino , COVID-19/prevenção & controle , COVID-19/imunologia , COVID-19/virologia , Camundongos , Vacinas de Produtos Inativados/imunologia , SARS-CoV-2/imunologia , Hidróxido de Alumínio/administração & dosagem , Modelos Animais de Doenças , Adjuvantes Imunológicos/administração & dosagem , Adjuvantes de Vacinas , Anticorpos Antivirais/imunologia , Camundongos Endogâmicos BALB C , Humanos , Coronavírus Relacionado à Síndrome Respiratória Aguda Grave/imunologia
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