If you have a child under 3 who comes into the emergency department in winter with fever and vomiting or diarrhea or both, there's a 90% chance it's rotavirus.

It's not that the emergency department couldn't take them in, it's that they couldn't get them out. If you don't have beds you can admit them to, you're really at gridlock.

The problem was, the earlier vaccines didn't cause long-lasting immunity, ... Frequent boosting was required.

The problem with the original vaccine is when given to kids over 7, it caused some pretty severe reactions,

Vomiting I have not done.

If you or your child has swelling of the cheeks with fever or aches and pains then you need to see your doctor.