Minor comment: the first COVID examples show two thermometers with 90° , which I guess is Fahrenheit. > 95% of the world population uses Celsius, so this seems a bit USA (and Liberia, etc.) specific (unless you try to boil water). :)
https://en.wikipedia.org/wiki/Celsius#/media/File:Countries_...
Not for body temperature. The author is Indian and most Indians still use Fahrenheit for body temperature.
Minor comment: the first COVID examples show two thermometers with 90° , which I guess is Fahrenheit. > 95% of the world population uses Celsius, so this seems a bit USA (and Liberia, etc.) specific (unless you try to boil water). :)
https://en.wikipedia.org/wiki/Celsius#/media/File:Countries_...