I might be missing something, but I fail to see how contact tracing is useful, due to secondary contacts/infections.
I.e. contact tracing is like a BFS search on a graph.
So, even if you trace the closest contacts, by the time a person takes the test and notify the network, those primary contacts (edge 0) might have infected their own contacts (edge 1) until basically you would need to isolate the whole population.
I.e. contact tracing is like a BFS search on a graph.
So, even if you trace the closest contacts, by the time a person takes the test and notify the network, those primary contacts (edge 0) might have infected their own contacts (edge 1) until basically you would need to isolate the whole population.