Rise in Demonic Possession; Priests Arrive at Vatican for Exorcisim Courses

Cries to the Vatican have been heard that call for more Catholic Exorcists. The Vatican has called in priests from all over the world to take a course in conducting an exorcism. Some articles claim the priests will not perform an exorcism unless it is a "full-blown" demonic possession that's taking place. This means that the victim is possessed by a group of demons.

Does this mean that if you're only possessed by one or two demons I don't qualify for an exorcism?