What a LIAR. Testing positive is starting to look like the #metoo movement. Everybody wants to brag they are positive.
This stuff is so confusing.
Let us review our options.
(1) He is lying about having Covid.
(2) He tested positive but the test was wrong.
(3) He lied about taking the vaccines.
(4) He told the truth about taking the vaccines.
Now the number of combinations and permutations is 4 x 3 x 2 = 24.
My head hurts—hope it is not Covid!
;-)