So I always thought I had a pretty solid immune system. Well I'm a teacher and this year has not been kind to me. I've battled a few really nasty colds and over this weekend had a cold, fever, aches, etc. the whole shebang and was out of work yesterday. I'm starting to think taking some immune boosters might be helpful. I know vitamin c and zinc can be good - but not sure about dosage? Any other recommendations??