Wow I have never heard of this before.

Can't you reason with yourself that this is completely irrational? Meat is lovely, very safe and in trying to avoid being sick you are actually making the risk of being sick in the future even worse. There's a reason why older people have such good immune systems: because they ate such good food but food which wasn't cleaned to within an inch of its life.

I once drank water out of a puddle and was sick from it but it probably did me good in the long run. Not that i'm advising that.