This explains why this year’s flu ‘panic’ was virtually non-existent. But this is par for the course EVERY year. The flu vaccine is guess work at best – every year the vaccine is targeted against what scientist hope will be the right strain. Not very evidence based if you think about it.
If you want to help your immunity naturally, the best thing to do is to always practice proper hygiene techniques, get enough sleep, eat healthy (getting enough vit D3 for the season) and most importantly, keep your nerve system clear with regular chiropractic care.