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.
A/California/04/09 virus was passaged in Calu-3 cells in the presence (red line) or absence (blue line) of increasing concentrations of IFN-λ1 (green line). *P < 0.05, °P < 0.01, compared to the values for the CA/04–IFN-λ1 virus.
