Figure 1.
Proportion of antiviral usage among patients infected with three flu types, by season.
Red: Early antiviral prescription; Blue: Late antiviral prescription; Gray: No antiviral prescription
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.