The study, Comparison of the immunogenicity of BNT162b2 and CoronaVac COVID-19 vaccines in Hong Kong, was published in the peer-reviewed journal Respirology. The two injections are different. The Pfizer BNT162b2 uses the modified RNA technology enclosed in a lipid nanoparticle. In contrast, the Coronavac uses an old vaccine technology using inactivated viruses that cannot replicate…
Natural immunity vs. Pfizer BNT162b2 vs. Coronavac
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