Mass psychogenic illness is the spontaneous manifestation of the same or similarhysterical physicalsymptoms by more than one person.
A common manifestation occurs when a group of people believe they are experiencing a similardisease or ailment, sometimes referred to as epidemic hysteria.
This category has the following 7 subcategories, out of 7 total.
The following 33 pages are in this category, out of 33 total.This list may not reflect recent changes.