[markhahn]

It's not clear to me whether the no-new-cases in China is real, temporary or biased sampling. Lockdown is a temporary measure to prevent any new infections is betting that something will change (vaccine, season-related drop in R0). It can't go on forever without destroying the economy. Do you think it's reasonable to trust reports of no new cases? Is the sense that is just "no new symptomatic cases that get reported officially", or really none? I find it difficult to believe that there can be no new cases in a vast country where almost everyone is susceptible, but perhaps I underestimate the degree of lockdown.