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Spatiotemporal Evolution of SARS-CoV-2 Alpha and Delta Variants during Large Nationwide Outbreak of COVID-19, Vietnam, 2021

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 transm...

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Published in:Emerging infectious diseases 2023-05, Vol.29 (5), p.1002-1006
Main Authors: Tam, Nguyen Thi, Anh, Nguyen To, Tung, Trinh Son, Thach, Pham Ngoc, Dung, Nguyen Thanh, Trang, Van Dinh, Hung, Le Manh, Dien, Trinh Cong, Ngoc, Nghiem My, Van Duyet, Le, Cuong, Phan Manh, Phuong, Hoang Vu Mai, Thai, Pham Quang, Tung, Nguyen Le Nhu, Man, Dinh Nguyen Huy, Phong, Nguyen Thanh, Quang, Vo Minh, Thoa, Pham Thi Ngoc, Truong, Nguyen Thanh, Thao, Tran Nguyen Phuong, Linh, Dao Phuong, Tai, Ngo Tan, Bao, Ho The, Vuong, Vo Trong, Nhung, Huynh Thi Kim, Hong, Phan Nu Dieu, Hanh, Le Thi Phuoc, Chung, Le Thanh, Nhan, Nguyen Thi Thanh, Thanh, Ton That, Hung, Do Thai, Mai, Huynh Kim, Long, Trinh Hoang, Trang, Nguyen Thu, Thuong, Nguyen Thi Hong, Hong, Nguyen Thi Thu, Nhu, Le Nguyen Truc, Ny, Nguyen Thi Han, Thuy, Cao Thu, Thanh, Le Kim, Nguyet, Lam Anh, Mai, Le Thi Quynh, Thuong, Tang Chi, Nga, Le Hong, Thanh, Tran Tan, Thwaites, Guy, Rogier van Doorn, H, Chau, Nguyen Van Vinh, Kesteman, Thomas, Van Tan, Le
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Language:English
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Summary: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.
ISSN:1080-6040
1080-6059
DOI:10.3201/eid2905.221787