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.
Correction to: Nature Medicine 10.1038/s41591-022-02064-y, published online 27 October 2022.
In the version of this article initially published, in the Figure 1a map, Vietnam was incorrectly shaded in red and has now been corrected to blue (as a lower middle income country) in the HTML and PDF versions of the article.
