Demon
The contemporary Roman Catholic Church unequivocally teaches that angels and demons are real beings rather than just symbolic devices. The Catholic Church has a cadre of officially sanctioned exorcists which perform many exorcisms each year. The exorcists of the Catholic Church teach that demons attack humans continually but that afflicted persons can be effectively healed and protected either by the formal rite of exorcism, authorized to be performed only by bishops and those they designate, or by prayers of deliverance, which any Christian can offer for themselves or others.
Gabriele Amorth
In October 2000, it was reported he had performed over 50,000 exorcisms (which ranged from "a few minutes" to "several hours" in length). In March 2010, he said that the number had increased to 70,000 . By May 2013 he said he had performed 160,000 exorcisms in the course of his ministry. Note that according to Father Amorth, each exorcism does not represent a victim of possession, but rather each exorcism is counted as a prayer or ritual alone, and some possession victims required hundreds of exorcisms.