[ISL]

In most of the US, you'd just keep going to work until you felt sick, because you never got tested. If you were asymptomatic, you'd keep right on going to work.

One need not catch every case in order to make the epidemic burn out. One needs to reduce the number of transmissions/case below one. As we begin to win, contact-tracing becomes increasingly effective. When multiple-contact tracers can focus on a single known case, it is possible to really dig in and track cases effectively.