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.
Actual incidence (orange line) and forecasts (blue dots, dark red 95% projection interval, pink 70% projection interval) at four time points for each of the representative diseases. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)
