Figure 2.
Map of Europe showing the counties which would/would not reach the herd immunity threshold (67%) through vaccination according to the collected public opinion survey results.3–22
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.