Because the boosters are EUA. Most of us, including me, got the two primaries a couple of years ago. BTW, this conversation thread is flagged and dead, so no o

Because the boosters are EUA. Most of us, including me, got the two primaries a couple of years ago. BTW, this conversation thread is flagged and dead, so no one sees it. And, I'm not going to vouch for the root, because it really is off-topic.