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.
Serum antibody responses induced by Gcf-HA1/CT immunization. BALB/c mice were immunized twice on day 0 and 14 by intranasal (i.n) injection of Gcf-HA1 fusion protein in combination with CT. (A) Vaccination and challenge experiment scheme. (B) Serum IgG antibody responses specific for Gcf were measured by ELISA 3 weeks after boosting immunization. (C) Serum IgG antibody titers specific for HA were measured by ELISA 3 weeks after boosting immunization. N.D., not detected.
