After my doctor went through my bloodwork with me, she said I already had a natural immunity due to strong numbers of anti-bodies similar to what is obtained a few weeks after the shot she can offer and saw no reason to "waste" any medicine on me.
On a note to all of us here I care about, science has known for over thirty years that zinc in your system tends to prevent all viruses from forming its "IMPOSSIBLE TO BREAK" sequences of proteins that make us sick. Even if you get sick, the prominence of serum zinc tends to lessen any infection.
Make sure you eat foods high in zinc and a supplement won't hurt.
Teetering on the edge with this, but there is a reason why some do not even show symptoms after infection. I hope they figure it all out soon.