Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Patients with unusual immune responses. A total of 78 patients were twice sampled during the convalescent period. The titer of S1-total and RBD-IgG antibodies were evaluated and some individuals exhibited unusual immune responses. A one case with a rapid decline in S1-total antibody; B RBD-IgG levels in three cases dropped rapidly. Abnormal antibody trends marked by red.
