Nguyen Van Vinh Chau, Tang Chi Thuong, Nguyen Thanh Hung, Nguyen Thi Thu Hong, Du Tuan Quy, Tran Ba Thien, Cao Minh Hiep, Ngo Ngoc Quang Minh, Truong Huu Khanh, Do Duong Kim Han, Truong Hoang Chau Truc, Nguyen Thi Han Ny, Le Kim Thanh, Lam Anh Nguyet, Cao Thu Thuy, Le Nguyen Truc Nhu, Pham Van Quang, Phung Nguyen The Nguyen, Phan Tu Qui, H Rogier van Doorn, C Louise Thwaites, Tran Tan Thanh, Nguyen Thanh Dung, Guy Thwaites, Nguyen To Anh, Le Nguyen Thanh Nhan, Le Van Tan; SEACOVARIANTS1

Duc Du, Dung Nguyen, Thao Nguyen, Louise Thwaites, Ronald Geskus, Thanh Tran, Yen Lam, Phong Nguyen, Quang Vo, Hau Nguyen, Chau Nguyen, Tan Le

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; OUCRU COVID-19 Research Group2

Duc Hong Du, Nguyen Quan Nhu Hao, Nguyen Van Hao, Tran Tan Thanh, Huynh Thi Loan, Lam Minh Yen, Tran Thi Diem Thuy, Duong Bich Thuy, Nguyen Thanh Nguyen, Nguyen Thi Phuong Dung, Evelyne Kestelyn, Ha Thi Hai Duong, Nguyen Thanh Phong, Pham Thi Tuyen, Nguyen Hoan Phu, Ho Dang Trung Nghia, Bui Thi Bich Hanh, Pham Kieu Nguyet Oanh, Phan Vinh Tho, Phung Tran Huy Nhat, Phan Nguyen Quoc Khanh, Duncan Wyncoll, Nicholas P J Day, Nguyen Van Vinh Chau, H Rogier van Doorn, Le Van Tan, Ronald B Geskus, C Louise Thwaites

C Louise Thwaites, Tran Tan Thanh, Nguyen Thi Han Ny, Lam Anh Nguyet, Nguyen Thi Duy Nhat, Cao Thu Thuy, Nguyen Thi Le Thanh, Nguyen Thanh Dung; OUCRU Sero-surveillance Network; James Campbell, Pham Quang Thai, Le Van Tan, Marc Choisy, Maciej F Boni