Google NAC (N-ACETYL CYSTEINE) which is an amino acid and flu, it’s virtual impossible to get the flu if you you’re taking it, but I’m not a doctor.
Who needs a stupid shot, if it only works on 59% that means 9% increase over the 50/50 change if you don’t take the shot which is basically nothing. If you want to line up and get this years concoction have at it ...