20世纪初,欧洲某地区痢疾和霍乱流行。人们很惊慌,一旦发现有人上吐下泻,便立即对他采取隔离治疗。一天夜里,两名担架员敲开一位投宿先生的旅馆房间,说:“请跟我们来吧,您一定是病了,因为我们看到您今天晚上上了12次厕所!”这位先生生气地说:“我上了12次,11次厕所被人占着!难道这也要隔离吗?” Early twentieth century, dysentery and cholera epidemics in a European region. People are very alarmed, once found vomiting diarrhea, he immediately took isolation treatment. One night, two stretchers knocked on a hostel hotel room and said: “Please come with us and you must be ill because we saw you have 12 toilets tonight!” Mr. angrily said: “I went on 12 times, 11 times the toilet was accounted for! Is this also to be isolated?”