Do an honest Test for 5 years as was done with poliovirus
There never can be because there never can be a vaccine because there never will be one to protect from. Polio dead ends with humans, it was cornered and trapped. Corona jumps through species and could disappear only to come back as something else. Even if this corona were something to worry about you would have to come up with a vaccine that works on all variants and could be simultaneously applied to nearly every living creature on earth.