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Mass hysteria
phenomenon that transmits collective illusions of threats, whether real or imaginary, through a population in society as a result of rumors and fear / From Wikipedia, the free encyclopedia
Mass hysteria or mass psychological illness is a phenomenon when a large group of people share a common emotion. This emotion can be positive, such as people being euphoric at a rock concert, or it can be negative, like after a great person or statesman died. It was first used by the Quarteerly Christian Spectator in 1830, to describe an outbreak of cholera.[1]
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