Thank you. Five studies referenced in there, with "limited participants" but complimentary results. Very cool. I often hear from people that recovered from Cov

Thank you. Five studies referenced in there, with "limited participants" but complimentary results. Very cool. I often hear from people that recovered from Covid that they don't need the vaccine, Rand Paul is one notable example, due to their natural antibodies. I'm curious to know what the average antibody titer level of previously infected people is to start. Or how much more protection do they get once vaccinated?