ALEXIEV, Ivaylo et al. SARS-COV-2 GENOMIC SURVEILLANCE IN BULGARIA INDICATES DIVERSE DYNAMICS DRIVEN BY MULTIPLE INTRODUCTIONS OF DIFFERENT VIRAL VARIANTS IN 2022. PROBLEMS of Infectious and Parasitic Diseases, Sofia, Bulgaria, v. 50, n. 3, p. 5–13, 2023. DOI: 10.58395/6725v303. Disponível em: https://pipd.ncipd.org/index.php/pipd/article/view/50-3-1-sars-cov-2-genomic-surveillance-in-bulgaria. Acesso em: 21 nov. 2024.