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suck abstract from ncbi


10.1126/science.abi4506

http://scihub22266oqcxt.onion/10.1126/science.abi4506
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34214046!8899822!34214046
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suck abstract from ncbi


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pmid34214046      Science 2021 ; 373 (6558): 991-998
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  • Chimeric spike mRNA vaccines protect against Sarbecovirus challenge in mice #MMPMID34214046
  • Martinez DR; Schafer A; Leist SR; De la Cruz G; West A; Atochina-Vasserman EN; Lindesmith LC; Pardi N; Parks R; Barr M; Li D; Yount B; Saunders KO; Weissman D; Haynes BF; Montgomery SA; Baric RS
  • Science 2021[Aug]; 373 (6558): 991-998 PMID34214046show ga
  • The emergence of severe acute respiratory syndrome coronavirus (SARS-CoV) in 2003 and SARS-CoV-2 in 2019 highlights the need to develop universal vaccination strategies against the broader Sarbecovirus subgenus. Using chimeric spike designs, we demonstrate protection against challenge from SARS-CoV, SARS-CoV-2, SARS-CoV-2 B.1.351, bat CoV (Bt-CoV) RsSHC014, and a heterologous Bt-CoV WIV-1 in vulnerable aged mice. Chimeric spike messenger RNAs (mRNAs) induced high levels of broadly protective neutralizing antibodies against high-risk Sarbecoviruses. By contrast, SARS-CoV-2 mRNA vaccination not only showed a marked reduction in neutralizing titers against heterologous Sarbecoviruses, but SARS-CoV and WIV-1 challenge in mice resulted in breakthrough infections. Chimeric spike mRNA vaccines efficiently neutralized D614G, mink cluster five, and the UK B.1.1.7 and South African B.1.351 variants of concern. Thus, multiplexed-chimeric spikes can prevent SARS-like zoonotic coronavirus infections with pandemic potential.
  • |Animals[MESH]
  • |Antibodies, Neutralizing/immunology[MESH]
  • |Antibodies, Viral/immunology[MESH]
  • |Betacoronavirus/*immunology/physiology[MESH]
  • |COVID-19 Vaccines/*immunology[MESH]
  • |COVID-19/prevention & control[MESH]
  • |Coronavirus Infections/immunology/*prevention & control[MESH]
  • |Cross Protection[MESH]
  • |Cytokines/blood[MESH]
  • |Female[MESH]
  • |Immunity, Heterologous[MESH]
  • |Immunogenicity, Vaccine[MESH]
  • |Liposomes[MESH]
  • |Lung/pathology/virology[MESH]
  • |Mice[MESH]
  • |Mice, Inbred BALB C[MESH]
  • |Nanoparticles[MESH]
  • |Protein Domains[MESH]
  • |Recombinant Fusion Proteins[MESH]
  • |SARS-CoV-2/immunology/physiology[MESH]
  • |Severe Acute Respiratory Syndrome/prevention & control[MESH]
  • |Severe acute respiratory syndrome-related coronavirus/immunology/physiology[MESH]
  • |Spike Glycoprotein, Coronavirus/chemistry/genetics/*immunology[MESH]
  • |Vaccines, Synthetic/*immunology[MESH]
  • |Viral Vaccines/*immunology[MESH]
  • |Virus Replication[MESH]


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