![Financial Times on Twitter: "Stéphane Bancel said scientists were worried because 32 of the 50 mutations in the Omicron variant are on the spike protein, which current vaccines focus on to boost Financial Times on Twitter: "Stéphane Bancel said scientists were worried because 32 of the 50 mutations in the Omicron variant are on the spike protein, which current vaccines focus on to boost](https://pbs.twimg.com/media/FFcDEVmXsAIPlxj.jpg:large)
Financial Times on Twitter: "Stéphane Bancel said scientists were worried because 32 of the 50 mutations in the Omicron variant are on the spike protein, which current vaccines focus on to boost
![Eric Topol on Twitter: "Good editorial by @DrMarcSiegel on how the @Novavax vaccine fits in https://t.co/u2mcYvQ5be https://t.co/oBrYBeY1JM" / Twitter Eric Topol on Twitter: "Good editorial by @DrMarcSiegel on how the @Novavax vaccine fits in https://t.co/u2mcYvQ5be https://t.co/oBrYBeY1JM" / Twitter](https://pbs.twimg.com/media/FLqnEeAVEAAX48G.jpg:large)
Eric Topol on Twitter: "Good editorial by @DrMarcSiegel on how the @Novavax vaccine fits in https://t.co/u2mcYvQ5be https://t.co/oBrYBeY1JM" / Twitter
![Safety, reactogenicity, and immunogenicity of homologous and heterologous prime-boost immunisation with ChAdOx1 nCoV-19 and BNT162b2: a prospective cohort study - The Lancet Respiratory Medicine Safety, reactogenicity, and immunogenicity of homologous and heterologous prime-boost immunisation with ChAdOx1 nCoV-19 and BNT162b2: a prospective cohort study - The Lancet Respiratory Medicine](https://www.thelancet.com/cms/asset/b9c057e0-e68d-4608-9700-73b19be518ae/gr1.jpg)
Safety, reactogenicity, and immunogenicity of homologous and heterologous prime-boost immunisation with ChAdOx1 nCoV-19 and BNT162b2: a prospective cohort study - The Lancet Respiratory Medicine
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![B and T cell response to SARS-CoV-2 vaccination in health care professionals with and without previous COVID-19 - eBioMedicine B and T cell response to SARS-CoV-2 vaccination in health care professionals with and without previous COVID-19 - eBioMedicine](https://www.thelancet.com/cms/asset/c2d5a1be-e098-4baa-ae93-94771215664a/gr1.jpg)