在谈到某些观念时,现在很流行将其喻为疾病。一些流行歌曲正在“传播”开来,而一些产品具有“感染力”。有鉴于此,广告商和制造商琢磨出一套“病毒式”营销理论,该理论认为,一个好的观念可以自主传播,而口碑能把一桩小事变成一件非凡之事。在流行病学中,“病毒性”具有明确的定 When it comes to certain ideas, it is now popular as a disease. Some pop songs are “spreading”, while some are “contagious.” Given this, advertisers and manufacturers are figuring out a set of “viral” marketing theories that suggest that a good idea can spread by itself and that word of mouth can turn a small thing into something extraordinary. In epidemiology, “viral” has a definite purpose