But, for the first time in a while, I think part of the coronavirus conventional wisdom has become too pessimistic. Yes, the fight to stop the spread of the virus is going to have to be ongoing unless, and until, we develop a vaccine or highly effective medical treatments, which is to say for at least several months. But the nature of the disruption does not have to stay constant. It is necessary now to close schools and businesses, and tell people to drastically reduce social contacts in a way that is economically devastating to many businesses and workers. But there is a trade-off: The better we get at interventions to identify and isolate specific people with the virus, the less we should need to rely on interventions that isolate the entire population. That’s a reason the ramp-up of widely available testing remains such an important goal for the U.S.: More testing should, in time, allow for more normal living.
We are seeing this already in other countries: South Korea and Singapore have been successfully addressing their coronavirus epidemics with less extensive social-distancing measures than are currently seen in Italy, France, and parts of the U.S., in part because of their effective testing and surveillance regimes. The Financial Times reports today on the town of Vò, Italy, which successfully stopped its local outbreak though a strategy that involved widespread testing of the population and isolation of those who tested positive, even as the rest of Northern Italy did not fare so well.
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