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. 2023 Apr 11;11(4):826. doi: 10.3390/vaccines11040826

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© 2023 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Distribution of studies selected for the efficacy of the Sinopharm, CoronaVac, and Covaxin vaccines for the prevention of COVID-19 [10,11,14,15,29,30,31,32,34,35,36,37,40,41,42,43,44,47,48,49].