Sentence:  In other cases the wound opens of itself, and discharges a peculiar matter. Something similar is known to take place in traumatic tetanus; and although in this affection, as well as in hydrophobia, we cannot explain why the phenomenon of <WSD>recrudescence</WSD> does not occur in many fatal examples, yet we ought not therefore to deny that in those cases in which it does appear, the connexion between the <WSD>recrudescence</WSD> and the disease is most remarkable. 
Meaning of the word marked with <WSD> tags:  The acute recurrence of a disease, or its symptoms, after a period of improvement.