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Against this virus. so there are a lot of people out there who are still not vaccinated and we sure wish they would start rolling up their sleeves and joining the rest of us. >> reporter: is there a concern for the vaccinated? especially if the virus continues to spread, which could mean more variants and could these variants mup tate in a way they can figure out how to evade our vaccines? >> well, of course, that is the concern, whether this virus multiplies add border or at home. when it multi...