Key Laboratory of Molecular Biology of Infectious Diseases(Chinese Ministry of Education);
Institute for Viral Hepatitis;
Department of Infectious Diseases;
The Second Affiliated Hospital;
Chongqing Medical University;
Chongqing;
China.;
Institute for Virology;
University Hospital Essen;
University of Duisburg-Essen;
Essen 45122;
Germany;
Antibody; Humoral immunity; SARS-CoV-2; Serological antibody test; Vaccine;