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.
Neutralizing antibodies levels to resist SARS‐CoV‐2 live virus. NAb titer was determined on day 35 following primary immunization in the 5 µg (A) two doses group and 14 days after the primary immunization in the 15 µg (B) single dose group. Serum NAb titers EG.5 and XBB.1 subvariants at IC50. n = 5, geometric mean ± geometric standard deviation. *p < 0.05; **p < 0.01; ***p < 0.001; ****p < 0.0001; ns: p > 0.05.
