Could you please expand on that? To be sure I understand correctly: Those who resisted taking the vaccine would have been more inclined to do so had a specific

Could you please expand on that? To be sure I understand correctly: Those who resisted taking the vaccine would have been more inclined to do so had a specific country been identified as the source, or that it may have been a leak from a laboratory? To state different: Was the unknown/disputed origins the catalyst for some not getting vaccinated?