Individuals that believe covid does not exist in the world. This also applies to individuals that choose not to participate in activities that prevent the spread of covid(and other communicable diseases).
Examples. Anti-vaccine, refusal to wear masks, will not use hand sanitizer/wash hands frequently (these people fall into the category of not washing hands after using the bathroom), and all preventative procedures in general.
When I was checking out at the store, this Covidiot was coughing all over the place.