6th Sinod [Roman Empire; Some overall present-day countries include Italy, Spain, England, France, Greece, Turkey, Israel, Saudi Arabia, and Egypt] [Provisional]: “No one of them who are in our sacred order [Christians], may eat their [Jews] unleavened bread, or live with them [Jews], or call on any of them [Jews] during a time of sickness, or learn medicine from them or wash with them in the public baths [Jews]. If anyone does so, if he is a cleric, he must be deposed, and excomminicated.”
Decretum Gratiani, Pars II, Causa XXVIII, Questio I, C. XIII, Researched and Translated by Joan Paez 1/11/2016