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Updated: Nov 20, 2025

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Detection of SARS-CoV-2 Neutralizing Antibodies using High-Throughput Fluorescent Imaging of Pseudovirus Infection
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Long-Term Humoral Immune Response in Persons with Asymptomatic or Mild SARS-CoV-2 Infection, Vietnam
Emerging Infectious Diseases
|January 26, 2021
Abstract:
Antibody response against nucleocapsid and spike proteins of SARS-CoV-2 in 11 persons with mild or asymptomatic infection rapidly increased after infection. At weeks 18-30 after diagnosis, all remained seropositive but spike protein-targeting antibody titers declined. These data may be useful for vaccine development.
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