As the CDC slides note, RSV itself (and perhaps other viral infections) may be a causal factor in GBS. If we could be certain that the observed GBS cases were caused by the vaccines, the 1-in-15K rate would be rather worrisome.
As noted in the CDC slides, RSV itself (and perhaps other viral infections) may be a causal factor in GBS. If we could be confident that the observed GBS cases were caused by the RSV vaccines, the ~1-in-14K rate would be rather worrisome, IMO.