and who may come up to get that, so it may help increase vaccination rates to some extent, but i also think that they are universities and businesses that have been considering putting in vaccine approvals in order to create a safer learning environment, and i think that this announcement from the fda would likely encourage them. >> sandra: even those who are hesitant to get this until the full fda approval, they might now run out and get it. we will see if it was just an excuse, if they will go out and get it now. but the increased likelihood of mandates here. where does dr. marty makary stand on that? do you support this? >> we have had them for a long time and health care because we are taking care of individuals who may be vulnerable, and we have had it for the flu shot. i think it makes sense for the covid-19 vaccine as long as we recognize that many health care workers already had it. they have antibodies. when you see a lot of nurses walking off the job, many of