Actually, it seems to me that more or less, that is exactly how some of the network based contact tracing models work: "Therefore, characteristics of mixing ne

Actually, it seems to me that more or less, that is exactly how some of the network based contact tracing models work: "Therefore, characteristics of mixing networks—and how these deviate from the random-mixing norm—have become important applied concerns that may enhance the understanding and prediction of epidemic patterns and intervention measures." [1] And as a follow-on, that is why there is so much discussion about using mobile apps for contact tracing - it builds the network for you, passively. 1 - https://royalsocietypublishing.org/doi/10.1098/rsif.2005.0051 https://royalsocietypublishing.org/doi/10.1098/rsif.2005.005...