Are Vaccines Safe for Our Cats?

Have You Had the Courage to Ask Your Veterianarian if Vaccines are Safe?

Conventional (a.k.a. allopathic or Western medically trained) veterinarians consider a symptom or condition to be an adverse reaction only if it occurs within 72 hours of vaccination. Acute reactions are uncommon, but they can be extremely serious, and they can have long-lasting effects.

Holistic veterinarians agree that symptoms of vaccine-induced diseases can occur any time during the life of our cats. In addition, the following known long-term risks are associated with one or more feline vaccines.


Antibodies, blood proteins that attack and destroy invading organisms, are the goal of vaccination. Vets want and hope the body will produce antibodies against the disease being vaccinated against. However, the vaccine manufacturing process contains some quirks that cause the body to make antibodies to a wide variety of components in the vaccine.

Most vaccines are produced through a culture medium such as eggs, blood serum, or certain types of cells. The organisms are grown in these nutritious cultures, and then filtered for manufacture into vaccines. While the filters are small enough to keep out whole cells, both intended viruses and a variety of unintended loose proteins will end up in the final product. When injected, the animal’s body then makes antibodies to many of the proteins as well as the virus itself. Studies at Purdue University showed that canine vaccines grown in calf serum caused antibodies to be made to many calf proteins, including red blood cells, thyroid, DNA, and connective tissue proteins. Unfortunately, calf proteins are so similar to dog proteins that the antibodies react to the puppies’ own tissue as well. This is an autoimmune reaction. Every vaccinated puppy developed multiple autoantibodies, and every additional booster produced even more autoantibodies. Because the puppies in the Purdue study were euthanized at 22 weeks of age, (NOTE: I know this is extreme animal cruelty, but this is the “Big Pet Pharma” drug industry for you and one of the many reasons I abhor it) it is unknown if these autoantibodies would lead to disease, but logic suggests it is likely. In other words, because proteins are similar among many animals, antibodies to proteins in the vaccines can cause an autoimmune reaction. The immune system starts attacking the body’s own organs and tissues.

Feline Chronic Renal Failure – Could It Be Caused by Vaccination?

Have you ever lost a beloved feline companion to kidney failure? Read this very carefully and consider what I am sharing with you here.

The common feline panleukopenia virus (often mistakenly called distemper) is grown in a culture of feline kidney cells. Recent work at Colorado State University showed that most kittens developed autoantibodies to their own kidney tissues after being vaccinated for panleukopenia. When autoantibodies react with body tissue, the result is inflammation. Each booster vaccine creates even more antibodies – and more inflammation. Chronic low-grade inflammation is the primary cause of feline chronic renal failure (CRF), which is almost guaranteed to develop in older cats. The authors of the study suggest (but did not prove) a causal relationship between the panleukopenia vaccine and the development of CRF. Inflammation is one of the primary reasons that I am a strong advocate for a state of the art Omega-3 anti-inflammatory and antioxidants supplement called Moxxor being given when vaccination takes place and daily thereafter to keep inflammation at bay along with an ice pack to the site.

An auto-immune reaction to kidney proteins injected with the vaccine can cause the cat’s immune system to attack its own kidneys. The chronic low-grade inflammation generated by this vaccine reaction – compounded every time the cat receives a booster – is a likely contributor to the development of CRF. Annual boosters for feline panleukopenia are totally unnecessary because the immunity produced by the initial kitten vaccine is very long lasting, and adult cats are naturally resistant. If your cat or kitten has had the actual disease called panleukopenia they must never be vaccinated as they have received immunity for life, much like those of us who have had chicken pox have. Again, there is a strong case for the use of Moxxor daily to prevent diseases that stem from inflammation. Any disease that ends with an “itis” is an inflammation-based disease.

Vaccine-Associated Sarcomas May Occur After Vaccination

Malignant, fatal tumors called fibrosarcomas can be caused by some vaccines in cats. This cancer occurs in the connective tissue. The two vaccines currently implicated are rabies and feline leukemia. A third will undoubtedly be joining the list – the feline AIDS (FIV) vaccine. These three products are all killed vaccines made with adjuvants (substances that increase the immune response). Unfortunately, in cats, this additional response includes inflammation that can lead to the formation of cancer. Even worse, every additional vaccine indeed, some researchers suggest that every additional injection of any kind (antibiotics, steroids, insulin, sedatives, fluids, etc.) may significantly increase the risk of developing cancer, particularly if the injections are given in the same place. At least one vaccine maker has recognized this risk and now makes several vaccines that do not contain adjuvants, using advanced recombinant technology.

When vaccines were given between the shoulder blades, these cancers were inoperable and fatal because they would grow into the spine, ribcage, and chest. This became such a serious problem that it is now recommended to give the rabies vaccine in the right hind leg, and leukemia in the left hind leg so that when a tumor does develop, the whole leg can be amputated and thus the cat’s life can be saved. Do you think vaccinating like this is worth the risk? We take a healthy animal and run the risk of turning it into a double amputee to protect it from a disease it has very little chance of ever getting in the safety of your home?

I must warn that the rabies vaccine (as much as I personally abhor this shot) is required by law for most animals in most jurisdictions because it is said to present a public health hazard. Therefore, it is important from a legal standpoint to follow your jurisdiction’s regulations concerning rabies vaccines for your pets. Killed rabies vaccines are labeled for either one or three years; but the vaccine in the bottle is exactly the same in both cases. The label itself is the only difference. Request that your cat receive the three-year vaccine, only once every three years if you feel forced to do this. You can also consider a nonadjuvanted vaccine. If your vet clinic does not carry it, ask if they will order it, or try to find a vet who does.

In homeopathic medicine, vaccination is considered to cause a chronic condition with multiple symptoms, called vaccinosis. See my Care2 post on the topic of homeopathy for pets.

When faced with the symptoms of vaccinosis, you may not even see it as a sign of illness. Vaccinosis symptoms include laziness, finickyness, poor grooming habits, hairballs, bladder and kidney problems, chronic vomiting or diarrhea, chronic or recurrent upper respiratory infections, increased or displaced sexual behavior, aggression, destructiveness, wool-sucking, pica (eating indigestible items or even their own poop), seizures, excessive licking, hot spots, and over-grooming. The vaccinosis condition can be inherited as well. Each generation will become more and more ill, unless reversed by nutrition and holistic therapies. You will find these appropriate therapies outlined in great detail in my book The Complete Guide to Holistic Cat Care, which I co-wrote with Jean Hofve, DVM.

You can stay informed on the dangers of conventional veterinary care by joining me at Pet Parents Action Group.

Although off the topic of feline vaccination, the subject of vaccines for humans and infants especially has been of special concern to me for about 20 years now and I would feel remiss if I did not offer to parents or soon to be parents the following from a recent Natural News Network post by Paul Fassa on the subject of Hepatitis B vaccines and I quote from this article, “Renowned neurosurgeon and author Dr. Russell Blaylock puts it this way: ‘Because the child’s brain is undergoing a period of rapid growth from the third trimester of pregnancy until age 2 years, his or her brain is at considerable risk from this insane policy’ [infant vaccinations]. And continuing, Mr. Fassa offers, ‘The statistical evidence of rapidly rising autism and SIDS (sudden infant death syndrome) is overwhelming. Yet only five percent of adverse events get reported to the adverse event reporting system (AERS), making it easier for the CDC to claim low risk to benefit vaccine ratios.’”

The more we take the time to research what actually goes into the bodies of those we love the more empowered we become. This is a very worthwhile read!

I contributed an article to Natural News Network also on what to do to minimize the side effects of vaccines which works for both people and pets.

In a nutshell, apply an ice pack to the vaccine site immediately and give a high potency Omega-3 marine lipid, which I suggested above, to ramp down inflammation immediately and thereafter such as Moxxor For more information and excellent material to study or peruse, connect to

I will be sharing more about the dangers of conventional veterinary care, including vaccination here on Care2 in future Celestial Musingís posts. See Part 1 in the series here: Examining Feline Vaccination Risks

Have you seen the new Adoptable Pets page on Care2? Check it out here! Please also share with your friends – we’d love your help in finding homes for these adorable animals!


Celeste Yarnall
Celeste Yarnall5 years ago

This is also an excellent presentation on what vaccination is all about:

Celeste Yarnall
Celeste Yarnall5 years ago

This is an amazing article that interviews a group of veterinarians on their real feelings about vaccination. One of the vets is my writing partner Dr. Jean Hofve, DVM This publication is offering this download for free because they feel it is that important to share it.

Celeste Yarnall
Celeste Yarnall5 years ago

Please also check this article out by Sayer Ji ..the danger of aluminum is quite evident.

Lui Bar
Past Member 5 years ago

Thanks for the information. Sometimes there is abuse with vaccines applications. This substances lack of regulations even for humans we can expect much for pets. My cats have been healthy without any vaccine and my dogs too.

Past Member
Past Member 5 years ago

all of my cats have been rescues, and all received their shots and boosters every other year. After my Cujo died of panleuk (undiagnosed by his shoddy vet after Cujo lost half his body weight) and had to be put to sleep at the age of 7, I stopped getting the rest boosters. And I switched vets.

Although my current vet (brilliant!) is on the fence about boosters, he understands why I refuse them. I have one cat that goes outside so he gets a rabies shot every three years, but that's it. I was convinced from the beginning that Cujo's demise was from the shots. When I told my current vet of Cujo's symptoms, he knew right away it was panleuk. I did exhaustive research on vaccinations and arguments on both sides and I know in my heart it's a mistake.

Joan S.
Joan S5 years ago

I've always been on the fence about vaccinations and now even more so.

Pamela H.
Pamela H5 years ago

I have a cat with diabetes and have to inject her with insulin every twelve hours. If not, her health would deteriorate within days. I usually inject her around the scruff as it's very difficult to do it anywhere else. Now I'm worried.

Celeste Yarnall
Celeste Yarnall5 years ago

Thank you for your comments, everyone I so appreciate your feed back. You might also enjoy listening to my friend, Catherine O’Driscoll who is the founder of the PPAG (PET PARENTS ACTION GROUP) which I recommend in my post above! Please listen to this wonderful radio broadcast that she has just done on this very subject, (the dangers ofvaccinating dogs and cats annually) on a very popular radio show in the UK! Do help Catherine and I power the PPAG movement forward (Dr.Jean Hofve Dvm and I are the cat correspondents)

KS Goh
KS Goh5 years ago

Thanks for the article.

Anne K.
Anne K5 years ago

I have subscribed to the cats newsletter for years. Last week's "Cat of the Week" photo was a tortie who had her right hind leg amputated due to rabies vaccine related cancer.
My vet does not over-vaccinate (kitten shots plus a one year booster) and only uses the Merial non-adjuvant rabies and leukemia vaccines. I live in a state in which annual rabies vaccines are required - a money maker for the state. Humans don't continue to be vaccinated annually past childhood. Why should cats? I think it is important to vaccinate against panleukopenia (feline distemper) as it has proven to be a safe and effective vaccine, and the disease spreads like wildfire in cat shelters, however, I would never have my cats vaccinated every year! They had their "childhood" vaccines and boosters when they were a year. old.