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Immune response elicited from heterologous SARS-CoV-2 vaccination: Sinovac (CoronaVac) followed by AstraZeneca (Vaxzevria)

Yorsaeng, R.; Vichaiwattana, P.; Klinfueng, S.; Wongsrisang, L.; Sudhinaraset, N.; Vongpunsawad, S.; Poovorawan, Y.

2021-09-03 infectious diseases
10.1101/2021.09.01.21262955
Show abstract

Limited COVID-19 vaccines in many countries have delayed mass-immunization. Although individuals fully vaccinated with Vaxzevria (AstraZeneca) have higher antibody levels than those with CoronaVac (Sinovac), heterologous prime-boost with CoronaVac-Vaxzevria yielded comparable antibody levels to two-dose Vaxzevria. Combination use of different available vaccines may be warranted in Thailand, which faces limited vaccine choice and supply.

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