Bad Beat Infection

"Bad Beat Infection" is an alternate term for "Breakthrough Infection".

CNN's Dr. Sanja Gupta laments that the term "breakthrough infection is NOT "...the right phrase. To me, it doesn't seem nuanced enough to describe what's going on; it only serves to alarm those of us who are already vaccinated, and potentially discourage those who are hesitant."
Consequently, "Bad Beat Infection" is better because it refers to the poker term "Bad Beat". A bad beat is when you have very strong odds in your favor but still get unlucky. it's important to recognize that proper medical vaccines put the odds strongly in your favor and that without them thousands/millions more would die.

"He's fully vaccinated but he was in the tiny percentage that got a bad beat infection. Fortunately, he's OK thanks to the vaccines."