Ad26 vaccine protects against SARS-CoV-2 severe clinical disease in hamsters.
Nat Med
; 26(11): 1694-1700, 2020 11.
Article
en En
| MEDLINE
| ID: mdl-32884153
ABSTRACT
Coronavirus disease 2019 (COVID-19) in humans is often a clinically mild illness, but some individuals develop severe pneumonia, respiratory failure and death1-4. Studies of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in hamsters5-7 and nonhuman primates8-10 have generally reported mild clinical disease, and preclinical SARS-CoV-2 vaccine studies have demonstrated reduction of viral replication in the upper and lower respiratory tracts in nonhuman primates11-13. Here we show that high-dose intranasal SARS-CoV-2 infection in hamsters results in severe clinical disease, including high levels of virus replication in tissues, extensive pneumonia, weight loss and mortality in a subset of animals. A single immunization with an adenovirus serotype 26 vector-based vaccine expressing a stabilized SARS-CoV-2 spike protein elicited binding and neutralizing antibody responses and protected against SARS-CoV-2-induced weight loss, pneumonia and mortality. These data demonstrate vaccine protection against SARS-CoV-2 clinical disease. This model should prove useful for preclinical studies of SARS-CoV-2 vaccines, therapeutics and pathogenesis.
Texto completo:
1
Colección:
01-internacional
Asunto principal:
Adenoviridae
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Glicoproteína de la Espiga del Coronavirus
/
Vacunas contra la COVID-19
/
SARS-CoV-2
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COVID-19
Límite:
Animals
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Female
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Humans
/
Male
Idioma:
En
Revista:
Nat Med
Asunto de la revista:
BIOLOGIA MOLECULAR
/
MEDICINA
Año:
2020
Tipo del documento:
Article
País de afiliación:
Estados Unidos