> The idea that the vaccine could cause this “autoimmune arthritis” stemmed from a hypothesis, named the molecular mimicry hypothesis, which suggested that the protein used in the vaccine displayed similarity to a protein found in the human body, but was still different enough to be recognized as foreign by the immune system. This would mean that, alongside attacking the foreign bacterial protein, the immune system would also start targeting the normal human protein and thus lead to an autoimmune reaction.
It's not quite as simple as "anti-vaxxers shut it down", but it's also pretty clear that an effective, useful vaccine is unavailable for largely political (or non-medical) reasons.
Same thing as the "vaccines cause autism" crowd. For Lyme disease, it was fear that it would cause arthritis (Lyme disease causes arthritis). Despite repeated proof that it did not, the vaccine was banned in the US.
