Individual Acute Disease

In one sense, we might assert properly that all disease is Individual. What Hahnemann is referring to here, are acute diseases resulting from morbific influences (“exciting causes”) that act uniquely on individuals based on individual exposure; an inversion sprain of the ankle, a contusion from falling off a ladder, a burn, exposure to cold wind, a severe fright, &c.

Organon aphorism §73

As regards acute diseases, they are either of such a kind as attack human beings individually, THE EXCITING CAUSE being injurious influences to which they were particularly exposed. Excesses in food, or an insufficient supply of it, severe physical impressions, chills, over-heatings, dissipation, strains, etc., or physical irritations, mental emotions, and the like, are exciting causes of such acute febrile affections; in reality, however, they are generally only a transient explosion of latent psora, which spontaneously returns to its dormant state if the acute diseases were not of too violent a character and were soon quelled.