Spatiotemporal Evolution of SARS-CoV-2 Alpha and Delta Variants during Large Nationwide Outbreak of COVID-19, Vietnam, 2021 Nguyen Thi Tam , Nguyen To Anh , Trinh Son Tung , Pham Ngoc Thach , Nguyen Thanh Dung , Van Dinh Trang , Le Manh Hung , Trinh Cong Dien , Nghiem My Ngoc , Le Van Duyet , Phan Manh Cuong , Hoang Vu Mai Phuong , Pham Quang Thai , Nguyen Le Nhu Tung , Dinh Nguyen Huy Man , Nguyen Thanh Phong , Vo Minh Quang , Pham Thi Ngoc Thoa , Nguyen Thanh Truong , Tran Nguyen Phuong Thao , Dao Phuong Linh , Ngo Tan Tai , Ho The Bao , Vo Trong Vuong , Huynh Thi Kim Nhung , Phan Nu Dieu Hong , Le Thi Phuoc Hanh , Le Thanh Chung , Nguyen Thi Thanh Nhan , Ton That Thanh , Do Thai Hung , Huynh Kim Mai , Trinh Hoang Long , Nguyen Thu Trang , Nguyen Thi Hong Thuong , Nguyen Thi Thu Hong , Le Nguyen Truc Nhu , Nguyen Thi Han Ny , Cao Thu Thuy , Le Kim Thanh , Lam Anh Nguyet , Le Thi Quynh Mai , Tang Chi Thuong , Le Hong Nga , Tran Tan Thanh , Guy Thwaites , H. Rogier van Doorn , Nguyen Van Vinh Chau , Thomas Kesteman , Le Van Tan Emerging Infectious Diseases（2023）
摘要
We analyzed 1,303 SARS-CoV-2 whole-genome sequences from Vietnam, and found the Alpha and Delta variants were responsible for a large nationwide outbreak of COVID-19 in 2021. The Delta variant was confined to the AY.57 lineage and caused >1.7 million infections and >32,000 deaths. Viral transmission was strongly affected by nonpharmaceutical interventions.
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COVID-19, coronavirus disease, SARS-CoV-2, severe acute respiratory syndrome coronavirus-2, coronaviruses, viruses
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