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.
Comparison of reciprocal FRNT50 titer with either anti‐N IgG (A) or anti‐S1‐RBD IgG (B). Data are the mean and 95% CIs for each group of FRNT50 titers. N = 86 for FRNT50 vs anti‐N antibodies and N = 84 for FRNT50 vs anti‐S1‐RBD antibodies. *P < .05, **P < .001, and ***P < .0001 using Welchʼs test for unequal variance
