Way too many! Its in the thousands- Yes, i'm surprised at how many people didn't take the hint and come home sooner.
I think those images are from the guy's blog, drrron? I don't think it did him much credit at all, although he was no doubt under great stress then. If you read the previous posts, they weren't much better. The thing I found disappointing from a medical professional was the statement along the lines of 'we all felt fine - why weren't we allowed to continue?'.
The form didn't ask him how he was getting to the Rydges, it asked how they were getting to next place: 'hotel?'. Seems a reasonable thing to ask.