It’s a virus with a finite life. It spreads by contact. No contact = no more virus. The difficult part is those who can’t or won’t follow rules."Lockdown hard, suppress the virus, ride the economic storm".
Just slows it down doesn't stop it
"Unlock, hope the vaccine arrives soon and works, dig mass graves in the meantime".
That is the way to go,
It boils down to,
Nobody knows what to do to defeat this virus