moaning, chattering of teeth, hyperpnea, and tetany. A medical analysis of the event about one year later found that outbreaks began among the 14-year-olds, but that the heaviest incidence moved to the youngest age groups. There was no evidence of pollution of food or air. The younger girls proved more susceptible, but disturbance was more severe and lasted longer in the older girls. Using the Eysenck Personality Inventory, those affected had higher scores for extroversion and neuroticism. It was considered that the epidemic was hysterical, that a previous polio epidemic had rendered the population emotionally vulnerable, and that a three-hour parade, producing 20 faints on the day before the first outbreak, had been the specific trigger. Mount Pleasant, Mississippi (1976) – School officials suspected drug use after 15 students fell to the ground writhing, but no drugs were found and hysteria is assumed to be the culprit. At one point, one third of the school's 900 students stayed home for fear of being "hexed". Malaysia (1970s–1980s) – Mass hysteria in Malaysia affected school-age girls and young women working in factories. The locals have explained this outbreak as "spirits" having possessed the girls and young women. Hollinwell incident (1980) – Around 300 people, mostly children, but including adults and babies, suddenly had fainting attacks, nausea and other symptoms. The incident remains one of the prime examples of mass hysteria. West Bank fainting epidemic (1983) – a series of incidents in March 1983 wherein 943 Palestinian teenage girls, mostly schoolgirls, and a small number of IDF women soldiers fainted or complained of feeling nauseous in the West Bank. Israel was accused of using chemical warfare to sterilize West Bank women while IDF sources speculated that a toxic substance had been employed by Palestinian militants to stir up unrest, but investigators concluded that even if some environmental irritant had originally been present, the wave of complaints was ultimately a product of mass hysteria. This conclusion was supported by a Palestinian health official, who said that while 20% of the early cases may have been caused by the inhalation of some kind of gas, the remaining 80% were psychosomatic. Day-care sex-abuse hysteria – a moral panic that occurred primarily in the 1980s and early 1990s featuring charges against day-care providers of several forms of child abuse, including Satanic ritual abuse. San Diego (1988) – The U.S. Navy evacuated 600 men from barracks; 119 were