Figure 5.
tRNA adaptation index of influenza viruses. The tAI of each viral gene is shown by year of virus isolation. Viral host and subtypes are indicated by color.
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.