由于人类紧密地居住在一起,寄生虫类疾病很容易扩散。自人类开始定居并进行农耕活动之后,历史则以令人目不暇接的速度向前发展,人类的家庭很快遍及世界。正如美国人类学家科恩(Cohen,M.)所表达的那样:大约一万年前,几乎每个人都完全以野生食物为生;到2000年前,大多数人则已成为农民。这样的变化,无可置疑地是由人类自 Because humans live together closely, parasitic diseases can easily spread. Since the beginning of human settlements and farming activities, history has moved forward with dizzying speed, and human families have rapidly spread all over the world. As the American anthropologist Cohen, M. put it: Almost 10,000 years ago, almost everyone was living exclusively on wild food; by 2000, most were farmers. Such changes are undoubtedly made by human beings