👉 Spirochetosis, also known as "spirochete" or "spongy amoeba," is a rare and life-threatening condition in which a small round-shaped organism called a "spirochete" grows rapidly on the skin of an animal, causing it to swell up. This can lead to severe pain, difficulty breathing, and death if left untreated. The term "spirochetosis" was first described by German zoologist Dr. Friedrich Wilhelm Spinoza in