Reply to Hahnemann's position on vaccination: A call to rethink.

Abstract There is a debate on the merits of modern vaccination in relation to Hahnemann’s position regarding this practice in his time. The authors of a recent Letter to the Editor argue that Hahnemann was in favour of vaccination and that we need to assess vaccination objectively. I agree with both of these positions, but disagree as to the details regarding what is meant by these two conclusions. I argue that Hahnemann made clear that vaccination did not provide immunity