Should be fine but im 30. I guess your immunity to it can fade after time. Im getting a immunity test Monday to make sure. There are a few people around here who have gotten it and have had there shots. One was a 8 year old child :(
Yeah she needs to be sent home... but on the plus side, if you were born here in the USA then you should be fine because you should have got vaccinated for it when you were a child.