2 ms·

I saw this video, which illustrates what you pretty much stated: https://www.youtube.com/watch?v=K3odScka55A https://www.youtube.com/watch?v=K3odScka55A I act

• pardner 6y ago
  Best general explanation I've seen so far, thanks for posting the link. Unfortunately, it still completely sidesteps any discussion of the relative risk of a vaccinated person (who is protected from a severe infection themselves) still a) getting infected and b) causing a severe case in someone else who is not yet vaccinated. So while "efficacy" may not be relevant on one dimension (MY chances of severe infection) it still seems important in another dimension (the chances of ME nonetheless getting infected then giving a severe case to someone else).