I’m currently sitting in a delightfully nerdy lecture about STD transmission. The lecturer is discussing various models drawing from different areas of study. First there was population biology stuff with assortative and non-assortative mating, and then there was graph theory to analyze sexual networks, with references “betweenness” and “centrality”. I’m very amused.
(It’s also a good lecture in general; he’s emphasized the need to respect people’s decisions about their own sexual behavior, the fact that not everyone is at risk, and the fact that while you can predict whether certain groups are likely to be at risk, you can’t definitely say that a given individual is or is not at risk without private information.)