ĐỖ, Thái Hùng et al. Environmental sampling for SARS-CoV-2 at a reference laboratory and provincial hospital in central Viet Nam, 2020. Western Pacific Surveillance and Response, Manila, Philippines, v. 12, n. 3, 2021. DOI: 10.5365/wpsar.2020.11.4.002. Disponível em: https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/829. Acesso em: 3 jun. 2026.