Feline Infectious Peritonitis (FIP)

Feline Infectious Peritonitis (FIP) is a viral infection

One of the most frustrating and confusing viral infections seen sporadically in cats is a disease known as feline infectious peritonitis, or FIP. This is caused by the type of virus called a corona virus. In fact, most cats either have been exposed to or are carriers of many types of corona viruses. It is now believed that under certain circumstances, either because of physical, emotional or toxic stress, a very virulent strain called FIP can sporadically occur in cat populations.

Unlike many other feline viruses like feline leukemia virus (FeLV) and feline immunodeficiency virus (FIV), which suppress the immune system, it is in fact the cat’s immune system’s over-reaction to the FIP virus which leads to the clinical symptoms seen. The symptoms can involve almost any organ system from respiratory tract, to digestive tract, to the eye and brain. While there are two common type of syndromes called the wet and dry form, depending upon whether there is fluid buildup in the chest or abdominal cavity, many cats can have combinations of these forms and/or varied symptoms.

Many years ago when a FIP vaccination was developed, many veterinary experts, including myself actually saw those cats develop worse disease upon exposure to the FIP corona virus, so that is one vaccination I certainly do not recommend. Despite decades of research, we still have very poor abilities at diagnosing this infection definitively. Even the newer FIP specific Elisa blood tests fall short from being ideal in diagnosing many cats and/or in ruling in or out this disease.

Definitive diagnosis in most cases still for the most part can only be done by biopsy of affected tissues or organs. The best advice I give my feline guardians is to raise their cats in as minimally stressful, natural ways as possible. If possible, feed a proper homemade meat based diet, or at least one of the better naturally preserved diets like Wysong or Pet Guard. Do not over vaccinate especially indoor cats, and also use excellent supplements like Vetri-DMG liquid, Soft Vitachews for Cats, as well as the supplement Transfer Factor to help bolster up the immune system of our feline friends, so as to lessen the likelihood of developing or contracting a virulent corona viral strain of FIP.

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  1. Several articles mention “Transfer Factor” but Pet Meds doesn’t seem to carry it and there are “scam” references all over the net about it.
    I have a cat w/ FeLV; is the Transfer Factor worth a try? The poor little thing does not need to be any sicker

  2. Dr. Michael Dym, VMD veterinarianMarch 31, 2012 at 3:19 pm

    I think the transfer factor is indeed worth a try. I have seen many animalsrespond favorably in my experience and opinion although it wont cure your cat of Felv infection.

  3. Cynthia GreenfeatherAugust 25, 2016 at 11:26 pm

    Our cat (over 12 years old) was losing weight, obviously ill. Blood work shows FIP. But he seems to be improving. He isn’t acting ill like he was, and his appetite is improved. So, we’re just taking it one day at a time.

  4. HI Cynthia Blood tests for FIP are not 100 percent accurate. Holistic supplements and other immune stimulants such as transfer factor are potentially helpful. To locate a homeopathic vet in your area, see the website http://www.drpitcairn.com as well as http://www.doctordym.com

  5. I rescued a stray cat with FIP and gave him one TF capsule per day. The vet estimated that he had 2 weeks left, since he was already really old at that time. He stuck around for 2 months, died of kidney failure, probably one of the complications caused by FIP. So yeah, I think TF helps prolonging his life, enough to let him know he had a nice, warm furever home.

  6. We had a kitten with FeLV, took him to Dr Joe Raemakers in Santa Cruz, CA who helped develop transfer factor. We put him on it and he grew up healthy. At about 1 year old, his ears stopped being warm, so no more fevers, he was full of energy and his coat was shiny and his eyes were bright. I was about to take him back to the doc for a blood test confirming that he had kicked the virus, but he was so full of beans he ran out to play one night and was hit by a car.
    Anyway, transfer factor really does work.

  7. Hie lisa.. I would like to ask u.. Dosage for ur cats.. Consume FT.. Isit twice a day.. Or just once daily.. My cat seems to get fip now.. And still struggling to boost its own immune.. There is positive reaction.. But im not sure about the dosagre or animals consuming TF.. But yes indeed TF is worth a try.. Ive used 4 years.. 90% of my cats which hitted by parvo.. Feverish.. Consuming TF.. By 1 to 2 days.. They start to ask some food to eat.. Now FIP is my 1st time.. And im struggling to use it to my kitten as well.. Hoping he’s getting better soon

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