What is the fatal disease in cats that has both wet and dry forms?

Feline Infectious Peritonitis, also known as FIP, is recognized as a fatal disease in cats that presents in two distinct forms: the wet (effusive) form and the dry (non-effusive) form. The wet form is characterized by the accumulation of fluid in body cavities, often leading to abdominal distension or respiratory distress due to fluid build-up in the chest. In contrast, the dry form presents with granulomatous lesions in various organs and does not result in significant fluid accumulation, leading to different clinical signs such as weight loss, fever, and organ dysfunction.

FIP is caused by a mutation of a coronavirus that typically affects cats, and the disease often becomes apparent in young cats or those with compromised immune systems. It is important to recognize both forms of FIP as they significantly influence diagnosis and treatment options.

The other diseases listed, while serious, do not present in both wet and dry forms. Feline Immunodeficiency Virus (FIV) and Feline Leukemia Virus (FeLV) are viral infections that affect the immune system and can lead to various secondary infections or conditions, but they are not specifically categorized by wet and dry forms. Feline Distemper, on the other hand, is an entirely