What we've seen in the US is that the J&J was the choice of people who legitimately wanted a vaccine but were leery of the novelty of the mRNA vaccines. This is

What we've seen in the US is that the J&J was the choice of people who legitimately wanted a vaccine but were leery of the novelty of the mRNA vaccines. This is going to crush that group of candidates and some non-zero number of them will wind up in the camp of people who don't get vaccinated at all.