Do H, Nguyen T, Do T, Olmsted A, Trinh L, Nguyen D, et al. Systematic sequencing of imported cases leads to detection of SARS-CoV-2 B.1.1.529 (Omicron) variant in central Viet Nam. Western Pac Surveill Response J [Internet]. 2022 Nov. 23 [cited 2026 May 30];13(4). Available from: https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/977