One of the main concerns when studying a disease is to understand how easily it can propagate through a social network. Multiple studies have found that social network structure plays an important role in propagation
In fact, studies have shown that a social network’s structure has direct influence on information/disease propagation. Small-world networks (clusters of interconnected groups that are also linked on the global level) seem to be good both at propagating and being immune. The less connected they are, the more immune and the less efficient at propagating they become. When there are more connections added (between the small-world clusters, not within), the network becomes better at propagating but also less immune
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