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I don’t think anyone will be able to do what he’s done, but certainly we do need people to step into his shoes, he will have to retire in the next couple years, and I guess for us the hope is there will be people who will donate, who will also … have this antibody and become life-savers in the same way he has, and all we can do is hope there will be people out there generous enough to do it, and selflessly in the way he’s done.