Taken from "The Black Death: An Introduction":<br/><br/>"...Consequently, during periods of infections, it was not easy to find doctors willing to treat plague patients. Moreover it was believed that a doctor visiting a plague patient presented a public hazard as he would carry the disease to other people or patients suffering from other ailments. The solution to this double edged problem was the institution of the community plague doctor. These were physicians or surgeons, especially hired by an infected town or village, who were responsible for the treatment of plague patients only and had to refrain from interaction with the rest of the population.<br/><br/>Their job was not only dangerous but particularly unpleasant as plague doctors were quarantined during the epidemic and for sometime after it had passed."<br/><br/>Addendum: basically what I'm saying is that it fits; a plague doctor would try to help cure others of illness, in effect, healing them. Hence the focus on healing spells. I may switch the Almighty spells to fire ones, since those who died of the plague were often burned, though.