Final answer:
The scenario appears to involve characters from Italian commedia dell'arte and historical medical practices like bloodletting with leeches, set within a historical and possibly folklore-rich context.
Step-by-step explanation:
The scenario described involves characters that seem to be rooted in historical and cultural contexts, possibly referencing Italian commedia dell'arte characters like inamorato (the lover), vecchio (the old man), and Doctor (il Dottore), who is often characterized as having little practical knowledge and being pompous. The mention of leeches could be indicative of historical medical practices such as bloodletting, which was common in Europe until the 19th century. In such settings, doctors would use leeches to 'treat' various ailments, believing it would balance the body's humors.
The documents refer to historical figures like Eusebio Valli and Antonio Pezzoni, Italian physicians who observed medical cases during a plague outbreak. Additionally, they also touch upon the common misinterpretation of historical diseases in medieval iconography, such as leprosy being confused for the plague, and the various misconceptions that arose due to digital dissemination.
The literary references to supernatural transformations, such as a man becoming a wolf, suggest a broader theme of folklore or mythology within the question's context. Nonetheless, the more grounded references to medical practice and history indicate a focus on the historical representation of physicians and medical practices.