NB. SARS-CoV2  (Coronavirus) and feline coronavirus (FCoV) are completely different viruses, and the latter does not infect humans. 

Feline COVID-19, also known as feline infectious peritonitis (FIP), is a viral disease that affects domestic cats and some wild felids. It is caused by a coronavirus called feline coronavirus (FCoV), which mutates within the cat's body, leading to the development of FIP. FIP is a severe and often fatal condition, but recent advancements in understanding the disease have paved the way for potential treatment options.

Unlike the human coronavirus that puts the elderly at a higher risk, FIP—FCoV’s supposed mutation—affects young felines: mainly kittens and cats under 2 years of age.

Feline coronavirus is quite common in domestic cats, with many infected cats exhibiting no or mild symptoms. However, in some cases, the virus mutates, causing FIP. The exact triggers for mutation are not well understood, but it is believed to involve the cat's immune response. FIP can manifest in two forms: wet (effusive) and dry (non-effusive). Wet FIP causes the accumulation of fluid in the abdominal and chest cavities, while dry FIP affects various organs, leading to granuloma formation.

Diagnosis can be challenging as the symptoms can be vague and resemble other diseases. That's why it's crucial to monitor your cats (https://www.animalassistbw.org/index.php/paw-order/common-signs-of-illness-in-cats) and consult with your veterinarian at the earliest. 

Vets use a combination of physical examination, medical history, blood tests, and sometimes advanced diagnostic techniques like polymerase chain reaction (PCR) testing to detect the virus. Additionally, a biopsy of affected tissues may be required to confirm the diagnosis.

Unfortunately, there is no definitive cure for FIP, and treatment options are limited. In the past, treatments focused on managing the symptoms and providing supportive care. However, recent breakthroughs have shown promise in developing antiviral drugs that can target the FIP virus. In addition to antiviral drugs, various immunomodulatory therapies are being explored to manage FIP. These treatments aim to modulate the cat's immune response and prevent excessive inflammation caused by the mutated virus. Immunomodulators, such as monoclonal antibodies and anticytokine drugs, have shown potential in reducing disease severity and prolonging survival in affected cats. In the meantime, early detection, supportive care, and management of symptoms remain essential in providing the best possible outcome for cats affected by this devastating disease.

Preventing the spread of feline coronavirus is crucial to reducing the incidence of FIP. Good hygiene practices, such as regular handwashing and disinfection of contaminated surfaces, can help reduce transmission. Additionally, separating infected cats from healthy ones can help limit the spread of the virus within multi-cat households or cattery environments.