editorial . 2023 Mar 30;11(4):764. doi: 10.3390/vaccines11040764
© 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/).
Figure 1.
Hybrid variants of SARS-CoV-2.