For a long time my tag line was, "CAUTION: A new variant will be released every time people stop being afraid."
They've already released Lambda (It was first detected in Peru in August 2020. Wikipedia).
I am unvaccinated and get calls from Red Cross 3 or more times a week. Sometimes twice in one day. I am seeing articles that they do not give plasma from vaccinated donors to those who are vaccinated. O+ and power red evidently are in high demand right now.