The AP story is untrue. Those two writers, both activist journalists with no relevant qualification (one has a diploma “doctorate” in public health), have been writing junk narrative stories for the last 18 months. I’d put the AP in the same category as Vox and Huff Post as a reliable source of information on anything.
To give you and idea of how fraudulently the AP article is - those kind of numbers are mathematically impossible. Even if the vaccine was 95% effective as the very old and sick were front-loaded in the vaccine programme the vaccine would have to have truly magical supernatural powers to get those kind of numbers. If the AP claimed a number like 60% or 70% that might be a maybe plausible . But still dubious. But 98%, pure fraud.
So an utterly fraudulent piece of propaganda written by two people who know so little about the subject that they did not realize the numbers the quote are medically impossible.