>>214047576
ancient cows had all kinds of diseases that could transfer to people, they no longer do. ever tank of milk gets checked and if there is anything wrong with one cow in the whole farm they will see it and discard the whole tank. the health of todays cows are far more controlled than the human population.
imagine if every cumshot you fapped out was tested and if they found something a bit off they either shot you full of drugs or took you outside and slaughtered you. that would greatly improve general human health.