Coronavirus Disease Research Community - COVID-19
Published June 30, 2022 | Version v1
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Comparative immunogenicity and reactogenicity of heterologous ChAdOx1 nCoV-19-priming and BNT162b2 or mRNA-1273-boosting with homologous COVID-19 vaccine regimens

Description

Multiple formulations and technologies for vaccinating against SARS-CoV-2 exist but how the use of these in homologous or heterologous format impacts immunogenicity is far from clear. Here the authors compare a range of heterologous and homologous SARS-CoV-2 vaccination strategies and assess the induced humoral and cellular immune response.

The following heterologous and homologous vaccination regimens were tested for immunogenicity and reactogenicity in a in a convenience cohort of 331 healthy individuals. 

ChAdOx1-nCoV-19 followed by BNT162b2 (n=66)

ChAdOx1-nCoV-19 followed by mRNA-1273 (n=101)

BNT162b2 followed by BNT162b2 (n=43)

mRNA-1273 followed by mRNA-1273 (n=59)

ChAdOx1-nCoV-19 followed by ChAdOx1-nCoV-19 (n=62)

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Additional details

References

  • Klemis et al. (2021) DOI: 10.21203/rs.3.rs-1034243/v1