1962年,在坦桑尼亚爆发过一次大规模的“传染性笑病”。这种病肇始于当地一所女子学校,12～18岁的女孩开始无缘无故、歇斯底里地大笑,紧接着这些“笑病”便传染到了临近校区,总共有14所学校的1000多人感染了这种“笑病”。该“笑病”在当地持续了2年之久。不过,好消息是,这种病并不会引发其他病症。医学上将其称为笑声传染病,它似乎对人体没有害处。 In 1962, a massive “contagious laughter” broke out in Tanzania. The disease started in a local girls’ school. Girls aged 12 to 18 began to laugh without hysteria, hysterically, and these “smiles” were transmitted to nearby campuses, totaling more than 1,000 in 14 schools Infected with this “laughter ”. The “grief ” in the local lasted 2 years. However, the good news is that the disease does not cause other illnesses. Medically it is called a laughter and it does not seem to harm the human body.