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We tested pre-pandemic (2015--2019) plasma samples from 148 Vietnamese children and 100 Vietnamese adults at high risk of zoonotic infections for antibodies against SARS-CoV-2 nucleocapsid and spike proteins. None was positive. The data thus demonstrated no evidence of prior serological cross-reactivity with SARS-CoV-2 that might explain the low numbers of COVID-19 in Vietnam. No pre-existing cross-reactivity might explain Vietnam success of COVID-19 control.

Original publication

DOI

10.1016/j.ijid.2021.07.072

Type

Journal article

Journal

International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases

Publication Date

10/2021

Volume

111

Pages

127 - 129

Addresses

Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam.

Keywords

for OUCRU COVID-19 research group, Humans, Antibodies, Viral, Adult, Child, Vietnam, Pandemics, COVID-19, SARS-CoV-2