影响流行的因素有哪些?

影响流行的因素有哪些?
2024-12-02 06:31:31
推荐回答(5个)
回答1:

自然因素和社会因素。
1、流行因素是指影响传染病流行的外界因素,主要包括自然因素和社会因素。它们通过对传染源、传播途径、易感人群三个环节的作用,可以促进或抑制传染病的流行过程。
2、在社会因素和自然因素中,又以社会因素为主导因素,因其可以作用于自然因素,并且在一定程度上改变自然因素。
传染病的流行依赖于传染源、传播途径和易感者三个环节的连接和延续,任何一个环节的变化都可能影响传染病的流行和消长。这三个环节的连接往往受到自然因素和社会因素的影响和制约。20世纪80年代后期人类部分传染病之所以能死灰复燃,再度肆虐人类,是诸多自然因素和社会因素的共同作用所致。

回答2:

影响需求的因素包含:该产品自身的价格、消费者的收入、相关产品的价格、消费者的偏好、消费者对产品价格变化的预期等。

回答3:

我个人觉得经济,自然坏境也可以造成影响流行的因素

回答4:

人气 听的人多了,看的人多了,自然就流行了

回答5:

商业

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