The simplest way for schools and parents to help avoid illnesses at school is that age - old mantra of effective hand washing. (qaeducation.co.uk)
They both have research supporting their potential to benefit the immune system, making them good supplement choices for avoiding illness when taken together. (onnit.com)
That said, I wonder if doctors can't learn a thing or two from teachers with the growing emphasis on prevention over treatment, on health and wellbeing over avoiding illness. (schoolsweek.co.uk)