Spatiotemporal evolution of SARS-CoV-2 Alpha and Delta variants during large nationwide outbreak of COVID-19, Vietnam, 2021 by Tam, NT, Anh, NT, Tung, TS, Thach, PN, Dung, NT, Trang, VD, Hung, LM, Dien, TC, Ngoc, NM, Van Duyet, L, Cuong, PM, Phuong, HVM, Thai, PQ, Tung, NLN, Man, DNH, Phong, NT, Quang, VM, Thoa, PTN, Truong, NT, Thao, TNP, Linh, DP, Tai, NT, Bao, HT, Vuong, VT, Nhung, HTK, Hong, PND, Hanh, LTP, Chung, LT, Nhan, NTT, Thanh, TT, Hung, DT, Mai, HK, Long, TH, Trang, NT, Thuong, NTH, Hong, NTT, Nhu, LNT, Ny, NTH, Thuy, CT, Thanh, LK, Nguyet, LA, Mai, LTQ, Thuong, TC, Nga, LH, Thanh, TT, Thwaites, G, Rogier van Doorn, H, Chau, NVV, Kesteman, T, Van Tan, L