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.
Distribution of participants in the survey. The city of Rio de Janeiro`s limits are marked in black. Symbols (red dots) represent the location (postal code) of each participant. Map was built using ArcGIS 10.6. © (for interpretation of the references to colour in the Figure Legend, the reader is referred to the web version of this article).
