Pre-existing cross-reactive neutralizing activity against SARS-CoV-2 and seasonal coronaviruses prior to the COVID-19 pandemic (2014-2019) with limited immunity against recent emerging SARS-CoV-2 variants, Vietnam

SARS-CoV-2 transmission and epidemic potential has been associated with population ’ immunity levels [1]–[6]. Prior to the emergence of newer variants of concern (VOC), COVID-19 incidence and number of deaths in Vietnam were substantially lower than those in Southeast Asia, and the country had ranked as one of the best in terms of its COVID-19 response. The low rates of infect ion until 2020 have been attributed to successful movement control orders (MCOs) restricting movement within national and international borders in Vietnam.

Source: International Journal of Infectious Diseases - November 18, 2023 Category: Infectious Diseases Authors: Thi Thanh Ngan Nguyen, Ee Mei Choo, Yukio Nakamura, Ryuji Suzuki, Takashi Shiina, Tadasu Shin-I, Mizuki Fukuta, Co Thach Nguyen, Thi Thu Thuy Nguyen, Le Khanh Hang Nguyen, Vu Mai Phuong Hoang, Kouichi Morita, Duc Anh Dang, Futoshi Hasebe, Thi Quynh Mai Le Source Type: research