“瘟疫”发生与普通疾病不同 ,个体病痛与否如不传染 ,基本可与他人无涉。然瘟疫一起 ,则仿佛好大一片天空都被毒魔吞噬笼罩 ,毒气四溢之际 ,人人惶惶自危 ,常常闹得昏云惨雾 ,天地玄黄 ,为之色变。正因如此 ,近代以来的防疫行为从来都不是以个体活动的形式出现的 ,每当毒雾弥? “Plague” occurs with the ordinary disease is different, if not infected with the individual or not, the basic can not be involved with others. However, together with the plague, it seems as if a vast sky was swallowed up by the poisonous devil, when the gas overflowing, everyone panic, often downtown faint clouds, heaven and earth Xuan Huang, the color change. Precisely because of this, the epidemic prevention behavior in the modern times has never appeared in the form of individual activities.