Thomas's Story
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Immune Mediated Problems and Vaccination in Weimaraners A small percentage of Weimaraner puppies manifest an auto-immune reaction following vaccination with combination MLV (modified live virus) vaccines. When the immune system of susceptible individuals is challenged by multiple antigens it becomes hyper-reactive and responds in the same way it would to fight an infection causing fever, elevated WBC (white blood count) and inflammatory reaction of tissues and joints. Although many puppies can be vaccinated with the combination MLV vaccines, there is no way at the present time to determine which pups are going to adversely react. Therefore, the Board of Directors of the Weimaraner Club of America recommends that when vaccinating
puppies the "Distemper and Parvo" vaccines be administered separately, a two
week interval between each vaccine. Any other vaccine should be administered
separately as well. |
Whilst searching the internet, I recently came across this reference to vaccine reaction in a short piece on hypertrophic osteodystrophy.
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The article then goes on to advocate separating vaccines in accordance with the WCA recommendations. My wife and I followed these recommendations when vaccinating our second Weimaraner puppy.
We can’t be 100% certain, but the evidence does suggest that
Thomas’s condition was initially triggered by the MLV vaccine. After his very
first shot he exhibited most of the above symptoms along with severe
lymphadenitis. Unfortunately at the time I did not have the knowledge to make
the connection. Antibiotics were prescribed and all went well until he was
castrated, on vet’s advice (due monorchidism - which means that the dog was born
with only one testicle, a very rare genetic defect), at 11months. Perhaps
post-operative stress tipped the balance.
The great variety of possible symptoms to this disease frustrate rapid diagnosis which was doubly difficult in Thomas’s case because his loss of head and neck muscle was masked by local swellings. Following diagnosis it took about one week for the prescribed corticosteroids to take away the inflammation and swellings from areas of muscular damage. It was only after this that the full extent of his muscle loss became apparent and my first illustration gives some idea of his sorry state shortly thereafter.
We also learnt around this time that muscle loss is an irreversible condition. Sadly, diseased muscle does not re-grow but is eventually partly replaced by connective tissues.
Over the following year, with many setbacks on the way, we managed to progressively reduce Thomas’s dependence on steroids and we have now established the permanent low level maintenance dose required to regulate his system most of the time. Occasionally, perhaps two or three times a year, we have to slightly increase dosage to get through a “return of symptoms” crisis.
During the course of that year of convalescence Thomas’s coat
thinned alarmingly and his underside became bald. He also suffered an acute
attack of demodectic mange. In order to mitigate these and other more serious
long term side effects of steroids we are now using a prednisone/azathioprine
“combination therapy”.
To maximise Thomas’s recovery prospects we also made fundamental changes to his diet. Following the dictates of Dr. Ian Billinghurst, as explained in his book “Give Your Dog A Bone”, and with the encouragement of our vet, we rejected commercial dog foods and moved over to an essentially natural raw meaty bone diet. We progressively increased daily off lead exercise to an average of 3 hours and we employed a number of homeopathic remedies to lift Thomas’s state of mind.
All in all we can now say, two years on, that our efforts have paid off. It is true that Thomas, with his thin neck and bony head, can never meet breed standards. None the less, he has matured into a lean and powerful animal with astonishing pace and endurance. This photo of Thomas is the most recent that we have.
The Veterinary Genetics Laboratory, part of the University of California, provide a very useful source of information on immunogenetics through their web site. This laboratory, which was established in 1955, became involved in the diagnosis of chromosome abnormalities in 1973 and has more recently expanded its technologies to include DNA typing for analysis of genetic disease, inherited traits and parentage. They are currently investigating auto-immune mediated diseases in Weimaraners and Thomas has kindly donated a DNA sample to their data bank. The goal of their research is “early recognition of disease susceptibility”. This should lead to improved breeding selection and eventually a more genetically healthy breed.
Nothing much has changed over the past 4 years. We have had our
ups and downs with Thomas, but basically he has remained to be a robust,
extremely powerful dog - or as our vet puts it 'he is in rude health'. Thomas is
still on immuno-suppressant medication (prednisolone & Azathioprine
combination therapy), which we had to gradually up and up over the years. By now
he has been taking those pills every day for over 6 years without a break. We
are sure that without his raw meaty bone diet and plenty of exercise Thomas
would no longer be with us. We have added a few supplements to keep him in shape
- 100% stabilized Aloe Vera Drink, Evening Primrose Oil and some blood cooling
tablets are making sure that Thomas's system goes on coping. The amazing thing
is that he hasn't even lost his coat, though it has thinned quite a bit. Our vet
is delighted, but puzzled over how well Thomas is doing and so are we. With the
amount of medication he has to take we know that eventually his system will no
longer be able to cope and his organs will shut down, but we'll cross that
bridge when we come to it, and meanwhile we enjoy our boy and he enjoys
life.
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