How Should “Covid” Appear in Print?

There are three options. I have a favorite

The above example comes from The Atlantic (Harper’s also spells it this way). Why the all caps? It’s because it’s an acronym: “COronaVIrus Disease.” Think of NASA, some will say: the National Space and Aeronautics Administration. Imperial College London writes: “[All caps] is consistent with the World Health Organization’s (WHO) use…