Mixing AstraZeneca and Pfizer Covid jabs ‘generates robust immune response’

Mixing doses of the Oxford/AstraZeneca and Pfizer/BioNTech vaccines generates a robust immune response against coronavirus, research suggests.

Mixing AstraZeneca and Pfizer Covid jabs ‘generates robust immune response’
Mixing doses of the Oxford/AstraZeneca and Pfizer/BioNTech vaccines generates a robust immune response against coronavirus, research suggests.