@judithkratochvi @FinchTH @fitterhappierAJ The BA.5 bivalent boosters only took about that long.
There wasn't a will to update earlier. No one has ever really explained why.
@judithkratochvi @FinchTH @fitterhappierAJ BA.5 二价助推器只花了那么长时间。
没有提前更新的意愿。没有人真正解释过为什么。