Map of the COVID-19 verified number of infected per capita as of 20 November 2022. In the latest versions of the map there is a color bar legend. See the file history farther down for the latest upload date from the source.
Latest versions: https://ourworldindata.org/explorers/coronavirus-data-explorer?tab=map&amp;Metric=Confirmed+cases&amp;Interval=Cumulative&amp;Relative+to+Population=true&amp;Align+outbreaks=false&amp;country=~OWID_WRL - Our World in Data. Click on the download tab to download map. The table tab has a table of the exact data by country. Source tab says data is from the COVID-19 Data Repository by the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University. The map at the source is interactive and provides more detail. For example, run your cursor over the color bar legend to see the countries that apply to that point in the legend. 
Older versions:
Own work

Data from Wikipedia English (e.g. Template:COVID-19 pandemic data and List of countries and dependencies by population).
Blank maps from File:BlankMap-World.svg and File:Blank Map World Secondary Political Divisions.svg.
Raphaël Dunant, Gajmar (maintainer),幺于 (maintainer)