Figure 1. Time course of the four distinct HPAI epidemics considered.
Number of infected farms detected daily for the four distinct epidemics. The data is given in Table S1.
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.