Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA.
Am J Public Health. 2012 Dec;102(12):2233-9. doi: 10.2105/AJPH.2012.300795. Epub 2012 Oct 18.
Social networks are typically seen as conduits for the spread of disease and disease risk factors. However, social relationships also reduce the incidence of chronic disease and potentially infectious diseases. Seldom are these opposing effects considered simultaneously. We have shown how and why diarrheal disease spreads more slowly to and in rural Ecuadorian villages that are more remote from the area's population center. Reduced contact with outside individuals partially accounts for remote villages' relatively lower prevalence of diarrheal disease. But equally or more important is the greater density of social ties between individuals in remote communities, which facilitates the spread of individual and collective practices that reduce the transmission of diarrheal disease.
社交网络通常被视为疾病和疾病风险因素传播的渠道。然而，社交关系也可以降低慢性疾病和潜在传染病的发病率。这些相互矛盾的影响很少被同时考虑。我们已经展示了在厄瓜多尔农村地区，为什么距离该地区人口中心越远的村庄，腹泻病的传播速度越慢，发病率越低。与外部个体的接触减少部分解释了偏远村庄腹泻病患病率相对较低的原因。但同样重要的是，偏远社区个体之间社会关系更加紧密，这有利于个人和集体实践的传播，从而减少腹泻病的传播。
