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That would be what the goal would be. we would want to try to eliminate infection as much as possible. but i dont think that these mrna vaccines are able to do that to that degree. so we have to refigure our vaccine strategy. hopefully technology gives us the solution to have a better, more -- a vaccine that provides more sterilizing immunity. >> and it might not be fair to ask you this in 30 seconds that we have left, but tell us your thought about this new ba.2 omicron variant. how worried sho...