For up to date info on vaccinations I have been watching the High Wire with Del Bigtree. I use Cat's Claw (a south american herb) and Echinacea and never suffer from any sickness. I would use elderberry for a serious fever but like I said I haven't had anything serious since using those herbs.
RE: An 11-Year-Old Boy Died of Flu Complications Despite Getting the Vaccine — How Does That Happen?