Not sure about this one specifically, but these microneedle array vaccines seem to use a slightly different mechanism to elicit an immune response (they stimula

Not sure about this one specifically, but these microneedle array vaccines seem to use a slightly different mechanism to elicit an immune response (they stimulate Langerhans cells, which are dendritic cells in the skin). Hard to say if that would make side effects worse or better or have no effect -- this trial was in mice so it's not like the researchers could ask -- but it's probably different enough a system that people's experiences with the injectable vaccines probably aren't especially predictive either way.