“I’ve heard people say, “Well, I have had COVID so I’ve been exposed. Therefore, my immune system is producing the proteins or antibodies. So I should be good, right?” And we’re even telling the people that have been exposed to get vaccinated because we don’t know how long that natural immunity, that production of natural antibodies when you get exposed to it will actually last. We don’t know if it’s three months, six months, a year.”