If a medically-informed response to a pandemic creates economic hardship so serious that the impacts are more deadly than the virus, then you change your economic system, not your response to disease.
"It is by will alone I set my mind in motion. It is by the Juice of Sapho that thoughts acquire speed, the lips acquire stains, the stains become a warning. It is by will alone I set my mind in motion."
I was going to rebuff about not necessarily needing a second earth, but after re-reading your earlier comment and considering sustainability issues like oxygen and food production, you may have convinced me.
I guess I should spend more time being productive and less time considering how I could survive the heat death of the universe.