Heterologous ChAdOx1 nCoV-19 and mRNA-1273 Vaccination – New England Journal of Medicine Related: [Preprint] Mixing Covid jabs has good immune response, study finds – “The Com-Cov trial looked at the efficacy of either two doses of Pfizer, two of AstraZeneca, or one of them followed by the other. All combinations worked well, priming the immune […]

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