Nina,
I hope you feel better soon. There is nothing worse than working sick, other than working on location sick.
My worst was just a bad case of the flu. I've gotten flu shots every year since. I had one case of food poisoning, but it hit hard and fast and was over within 24 hours. I must say I'm more likely to get sick from a family gathering of 20-30 youngsters than I am in a showhall with 100-200 adults.