Nguyen, Anh Phuong, National Influenza Center, National Institute of Hygiene and Epidemiology, Hanoi, Viet Nam, Viet Nam
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Western Pacific Surveillance and Response Vol. 13 No. 3 (2022): July ‒ September - COVID-19: Field Investigation Report
Occurrence of the Omicron variant of SARS-CoV-2 in northern Viet Nam in early 2022
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