An official website of the United States government
Here's how you know
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.
Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
The combined effect of varying vaccination rate, θ, and vaccine efficacy, , on the forecasted results of model (2.2). (a) Vaccination rate is fixed to θ = 0.01 while varying ; (b) varying ϕ.