On the Co-Existence, or the Occurrence in Close Succession, of More Than One Infectious Disease in the Same Individual

Some time back, in response to an invitation from your secretaries, I expressed my willingness to contribute a paper on some subject bearing on infectious disease, or the work in infectious disease hospitals. I afterwards experienced the usual difficulty of making up one's mind as to what particular theme would form a satisfactory basis for discussion. I was induced to take the subject which forms the title of this paper, chiefly because it is one on which my experience would allow me to address you with some assurance, and also because it may be expected to possess some interest for the Epidemiologist, although the evidences which I propose to lay before you are almost entirely drawn from clinical practice. Now although the fact was without doubt fully recognised by Murchison, that instances of the concurrence of more than one infectious disease in the body were not