>>101617882
It isn't, they had no way of finding out about it or connecting cause and effect of the parasite. They had cut down all their forests in the mideast and pigs don't pant or sweet, they stay in the shade to regulate their body temp. Without shade they were all rolling in the mud like crazy and pork got a negative connotation as unclean and had already largley stopped being eaten long before any religious proscription.