QUINTANA ZUÑIGA, Angel Alberto; MENDOZA SÁNCHEZ , Daniela; DÍAZ QUIÑONEZ , José Alberto. Evolution of vaccines against COVID-19: From the initial strain to the Omicron variant. Mexican Journal of Medical Research ICSA, [S. l.], v. 11, n. 22, p. 61–68, 2023. DOI: 10.29057/mjmr.v11i22.10633. Disponível em: https://repository.uaeh.edu.mx/revistas/index.php/MJMR/article/view/10633. Acesso em: 25 jul. 2025.