👉 Apicitis, also known as a corynebacteriosis or "coryne" in English, is an infectious disease caused by the bacterium Corynebacterium diphtheriae. It is characterized by the appearance of red spots on the skin and mucous membranes, with a distinctive characteristic that occurs when this condition is exacerbated by environmental factors such as heat or cold exposure. The symptoms of apicitis can vary widely depending on the individual affected, but typically include a