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.
Kinetics of induction of anti‐IAV(H1N1)‐specific IgG (A) and HI titers (B) in serum after IAV infection examined over a period of about 1 year. Data and lines represent the serial changes in anti‐HA(H1N1)‐specific IgG (U/ml) of individual patients with different color symbols. *P < 0·01, **P < 0·05.
