ruso
массовая истерия portugués
histeria em massa español
histeria en masa catalán
histèria col·lectiva 
Phenomenon that transmits collective illusions of threats, whether real or imaginary, through a population in society as a result of rumors and fear.
1
Annie watched as the unreasoning national hysteria broke out.
2
Despite the mounting national hysteria about the disease, Pham nursed him to the day before he died.
3
It's safe to say we are at Italia '90 levels of national hysteria and we're all hoping it won't be abating anytime soon.
4
However, it appears that national hysteria as Team GB has reeled in the medals may have contributed to a greater sense of unity and Britishness.
5
And the looters were the party shouting at the top of their voices about "vested rights" and "attacks on property" and "demagoguery producing national hysteria."