I've seen the same incident reported as two separate ones.

 Envoy Air Flight 3556 and American Eagle from Chicago O’Hare which is the same flight/plane.

 What other one did you hear about?


 I think looking at trucking companies (the planes of the ground) would provide a better assessment option since many trucking companies did not require vaccination and some did.  For instance Wal-Mart required vaccinations, but not many of the contracted companies did.  So we should be seeing a higher percentage of Wal-mart truck drivers incapacitated in comparison to private contractors.

 Yeah I've seen inaccurate information about this flight, claiming it is another one but that's it.

 FAA documents all flights and only show this one so if there's another it's most likely not a US flight, but my FAA guys are dealing with other stuff so I'm not going to have them look at this as it's entirely anecdotal.
 
 0.00476190476% if you calculate daily and there were 2.  Daily.