They apparently cannot see that everyone else is not dying. Yet they continue to walk around stores and even gyms in which they are the only one still wearing their "masks" – as they like to style them. It  doesn't make an impression on them that they are the only one wearing one.

There is fearsome devotion in this. 

Perhaps by speaking to them in a language they can understand…

It's why I have been bleating – like a sheep – at every one I see. Because, after all, that's what they are.

Baaaaaaaa!!!