First of all what’s the source?
The New England Journal of Medicine does NOT advocate locking down a whole country to fight Covid-19.From Wiki:
The New England Journal of Medicine is among the most prestigious peer-reviewed medical journals as well as the oldest continuously published one.
.Quote: that the overall clinical consequences of Covid-19 may ultimately be more akin to those of a severe seasonal influenza, or a pandemic influenza rather than a disease similar to SARS....
Influenza is commonly known as "the flu",
Key statements from this NEJM report ...
5. report mortality of 1.4% among 1099 patients with laboratory-confirmed Covid-19;
these patients had a wide spectrum of disease severity.
If one assumes that the number of asymptomatic or minimally symptomatic cases is several times as high as the number of reported cases, the case fatality rate may be considerably less than 1%. This suggests that the overall clinical consequences of Covid-19 may ultimately be more akin to those of a severe seasonal influenza (which has a case fatality rate of approximately 0.1%) or a pandemic influenza (similar to those in 1957 and 1968) rather than a disease similar to SARS or MERS, which have had case fatality rates of 9 to 10% and 36%, respectively.2
8. However, given the efficiency of transmission as indicated in the current report, we should be prepared for Covid-19 to gain a foothold throughout the world, including in the United States. Community spread in the United States could require a shift from containment to mitigation strategies such as social distancing in order to reduce transmission.
Such strategies could include isolating ill persons (including voluntary isolation at home), school closures, and telecommuting where possible.
Covid-19 — Navigating the Uncharted | NEJM