JohnDB
Platinum Member
- Jun 16, 2021
- 8,075
- 4,887
- 938
Those who have been vaccinated (I'm not sure by which of the four currently in use in America or the 8 used globally) and those who have previously been infected by COVID-19 (again I'm not sure by which of the four common strains infecting people)I only specified two. Can you tell me what the two groups I specified are?
And then there's the time variable...it also affects If you can be infected or not.