There are at least a few cases where people later entered a (now empty) room that covid positive people had been in recently and later got covid with no other obvious transmission mechanism. Now, they could of course gotten it some other way, so this is only suggestive. The cases I heard about were elderly people who may contract covid with a smaller viral load.
Edit: I did not see if those cases looked into whether there was air being circulated in said locations, which would provide a different vector than surfaces.
This seems neglected given that it is impacting the behavior of billions of people right now, perhaps needlessly.
There are at least a few cases where people later entered a (now empty) room that covid positive people had been in recently and later got covid with no other obvious transmission mechanism. Now, they could of course gotten it some other way, so this is only suggestive. The cases I heard about were elderly people who may contract covid with a smaller viral load.
Edit: I did not see if those cases looked into whether there was air being circulated in said locations, which would provide a different vector than surfaces.
This seems neglected given that it is impacting the behavior of billions of people right now, perhaps needlessly.