You can not "lockdown" (shut down) the economic and social world totally. Lockdown is a short-term stop-gap measure and political strategy that has not worked as well as expected long-term ever since the Covid-19 coronavirus first appeared, so that more finely differentiated measures are required.
For example, in addition to social distancing and the wearing of protective masks,
sensible caps on density, capacity and occupancy (e.g. 20% at restaurants) are shown by Stanford, Northwestern & Chicago research studies to be viable medical and economic alternatives to Covid-mandated "total" business closings.
Such sensible and yet limited restrictions would keep economies alive
-- nevertheless still greatly reducing new infections --
while giving recently developed medical solutions such as vaccination a chance to be implemented -- we hope -- successfully.
See Yaryna Serkez at the New York Times at
Opinion | How to Reduce Infections Without Closing Businesses - The New York Times
