Breeder Recommendations Regarding Leptospirosis

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Have you had a veterinarian strongly urge you to vaccinate your dog for Leptospirosis?

Or offer you one of those vaccine cocktails like DHLPP and not really telling you what’s in it? It contains Distemper, Parvovirus, Hepatitis or Adenovirus, Parainfluenza – and yes, the “L” is Leptospirosis.

And if you’ve succumbed to the pressure and allowed your vet to give your dog the leptospirosis vaccine, you possibly have been lulled into a false sense of security.

Many vets are afraid of Leptospirosis, for a couple of reasons.

Some of them have seen dogs become very ill with the disease while others worry because it’s a zoonotic disease, meaning it can be contracted by humans.

But leading immunologists such as Dr Ronald Schultz do not recommend the Leptospirosis vaccine. Dr Schultz does not vaccinate his own dogs even though he lives in on a farm in a Leptospira endemic area.

Infectious disease expert Dr Richard Ford has also stated publicly that despite living in an endemic area, he would not vaccinate his dog. Likewise, Dr Jean Dodds does not advise the use of the Leptospirosis vaccine.

So it seems that, depending on who you ask, you’ll find vets who are either for or against the Leptospirosis vaccine. This means it’s a good idea to learn more about Leptospirosis because ultimately, it’s your choice whether or not he receives the vaccine.

What Is Leptospirosis?

Leptospirosis is an infection caused by Leptospira bacteria.

Within the genus Leptospira there are 20 different species and more than 200 different serovars (a group of closely related microorganisms with a common set of antigens).

Dogs can catch Leptospira bacteria from water or soil that is contaminated with infected urine from rodents and other wild animals.

If your dog spends a lot of time playing in ponds or lakes or drinking out of puddles or standing water, he may be at risk, depending on the incidence of Leptospirosis in your area.

Leptospirosis is most commonly found in Hawaii, the west coast (especially California, Oregon and Washington), the upper Midwest, parts of Texas, Colorado and the mid-Atlantic coastal region. Leptospirosis also occurs in the southeastern US.

Healthy dogs who come in contact with the bacteria may never exhibit symptoms. In affected dogs, symptoms may start to occur within eight to ten days after exposure, and include fever, vomiting, diarrhea, muscle pain, blood in the urine, lack of appetite and lethargy.

In more serious cases, jaundice – a yellowing most easily seen in the whites of the eyes – can occur.

Humans can contract Leptospirosis through contact with the urine of an infected animal, but because there are only 100 to 200 cases per year in the US, the CDC does not even consider it a reportable disease.

Thirty states do report human cases and the highest prevalence of human infection is in Hawaii.

The disease does occur more in tropical climates where there is likelihood of standing water or flooding; rat infestations in densely populated urban areas are also a factor. In most cases, Leptospirosis is highly treatable when recognized early.

Conventional treatment with antibiotics (typically Doxycycline) usually takes quick effect but aren’t always necessary if working with a homeopathic vet; homeopathy is very successful in treating lepto.

However it’s important to note that there is a terrible peracute (very sudden) form of the disease where animals go into rapid shock and die.

However, very sadly, neither vaccination nor antibiotics will save these cases.

The Leptospirosis Vaccine

There are many problems with the Leptospirosis vaccine, which is why many vets stay away from it. The two most important strikes against it are …

  1. It does not provide effective immunization

  2. It has an extremely high rate of adverse reactions

Ironically, vaccinated animals can also shed the bacteria and infect humans.

The Leptospirosis Vaccine Isn’t Efficient

Unfortunately, many vets recommending Leptospirosis vaccines rely on information provided by the drug companies that make the vaccines, and, as a result, are not aware that the vaccine does not confer immunity – despite the fact that even the AVMA guidelines warn that 30% of dogs may not respond to the vaccine.

A drug company sponsored article by Dr Richard Goldstein of Cornell on the most recent lepto information states that the vaccine “appears” to work but, admits this is based on data provided by the company that makes the vaccine.

He also says the vaccine provides a year’s worth of protection – but this again is based on drug com-pany data.

Testing was by challenge only and failed to deliver serological (antibody) proof, so I am not inclined to accept it as proving anything.

There are many cases on record of vaccinated dogs contracting the disease, both in the US and abroad.

In the US, several veterinary clinics (one a referral hospital) have informed me of cases of vaccinated dogs still contracting Leptospirosis.

In Hong Kong, it’s common for vaccinated dogs to die from lepto. And the UK organization Canine Health Concern conducted a survey in which many dog owners reported that their vaccinated dogs were still getting lepto.

Leptospira vaccines appear to have little effect on transmission of the disease in animal populations either.

Why is this?

Either the vaccine doesn’t work, or there are serovars causing the disease that the vaccine doesn’t cover.

Given the high number of lepto serovars and the fact that there are so many strains of the disease that are not covered by the vaccines, the latter seems likely.

In the US, serovar shift is the excuse given for the vaccine not working. Theories that the vaccines are responsible for serovar shift in the first place have never been confirmed.

If you even consider vaccinating your dog for Leptospirosis (and I hope you won’t after reading this article), it’s extremely important that you find out every year which serovar is responsible for Leptospirosis infections in your area, using your state’s public health records.

Make sure the vaccine is an exact DNA match for the pathogenic strain your dog will encounter, or else you’ll be subjecting your dog to a great deal of pointless risk.

The presence of many more nonpathogenic Leptospira means that finding an exact match with the vaccine can be extremely challenging.

Leptospira vaccines for dogs are now available in two forms:

  1. The original two-way vaccines contained only the L. canicola and L. icterohaemorrhagiae serovars;

  2. The more recent four-way vaccines also contain L. grippotyphosa and L. pomona.

The four-way vaccine is the recommended choice because L. canicola and L. icterohaemorrhagieae infections appear to be in decline, while L. grippotyphosa is on the rise.

Two additional serovars now identified as causing infection, L. bratislava and L. automnalis, are not included in current vaccines.

It would be extremely expensive to monitor the environment for the presence of specific serovars, so because the disease is scarce in humans, no such program currently exists.

Finally, even if the vaccine is a match for the serovars, any protection it offers is very short lived.

Because of this, many vets recommend revaccinating every six months for dogs at high risk, although Dr Schultz has said that in order to have antibody protection you’d have to vaccinate with the four-way vaccine four times a year.

Source Of Human Infection

Once vaccinated, your dog can shed the Leptospira microbes, becoming a source of infection for you and your family.

I know several cases where the canine vaccine was undoubtedly the cause of a human contracting the disease.

One such case involved a duck hunter in California.

The state failed to find any Leptospira in bodies of water he’d frequented, suggesting it was highly probable he was infected by his vaccinated dog.

Leptospirosis Vaccine Side Effects

Bacterin vaccines like Leptospirosis and Lyme are very risky.

While experts might be refusing to use them on their own dogs because the risk of infection isn’t that high, it’s more likely due to the great number and significance of adverse reactions.

There are documented cases of the antigens for both Leptospira and Lyme disease vaccines creating the same diseases we are trying to prevent with the vaccination.

In fact, some dogs vaccinated with Leptospirosis die of renal failure within 48 hours – exactly the same type of pathology that the actual disease could create.

I have documented several cases of tumors, especially from the “whombo-combo” vaccines that include Leptospirosis.

I also see these combinations causing mast cell disease and cytokine storms (an overreaction of the immune system in which too many immune cells are activated in a single place, creating the potential for damage to body tissues and organs).

Autoimmune disease can also result from bacterin vaccination use. A significant additional risk is that the Leptospirosis vaccines all contain aluminum adjuvant.

Aluminum is a grade three (out of four) carcinogen. (The World Health Organization’s International Agency for Research on Cancer declared these adjuvants carcinogenic in 1999).

Not surprisingly, the blue-grey aluminum foreign body has been found in tumor biopsies of vaccinated dogs with cancer.

When veterinarians advocate these vac-cines, are they aware of the potential for these serious, sometimes fatal adverse events, most of which go unreported? If not, the client is not getting full disclosure.

What does “informed consent” even mean in these instances?

The dangers of the lepto vaccine are apparent in the double standard.

While our dogs are given the lepto vaccine, there is no Leptospirosis vaccine licensed for humans in the US. Some of the reasons for this are:

  • Unacceptable side effects

  • Incomplete and short lived protection

  • Increased risk of developing autoimmune disease

  • Even if vaccination partially protects, it will not prevent leptospiuria (Lepto-spira in the urine) so the disease can still be spread in the environment

In Leptospirosis, the signs of disease are often vague and nonspecific, and they don’t necessarily correlate to the serovar of infection.

There are many different presentations one might find in a dog with a pathogenic strain of Leptospirosis.

Leptospirosis Signs And Symptoms

Infection results in illness of varying severity, depending on the strain, geographic location and host immune response.

Some dogs display mild or no signs of disease, while others develop severe illness or death, often as a result of kidney injury.

In general, veterinarians should suspect Leptospirosis dogs with signs of:

  • kidney or liver failure

  • uveitis

  • pulmonary hemorrhage

  • acute febrile illness

  • or abortion.

Dogs with acute renal failure may show polyuria (excessive urine production), polydipsia (excessive thirst), dehydration, vomiting, diarrhea, lack of appetite, lethargy, abdominal pain or some combination of these signs.

Oliguria or anuria (little or no urine production) and hematuria (blood in the urine) also may occur.

Fever occurs early in the course of illness and may be accompanied by shivering, generalized muscle tenderness and reluctance to move.

Dogs may also show signs of liver failure, including jaundice.

Other reported lepto symptoms include conjunctivitis, uveitis and acute respiratory distress causing tachypnea, dyspnea or Leptospiral pulmonary hemorrhage syndrome (LPHS), which has been reported most frequently in dogs in some parts of Europe.

LPHS appears to have an immune-mediated basis and causes high mortality.

Signs of pancreatitis have been detected in some dogs by abdominal ultrasound.

Meningitis can occur in humans but has not been documented in dogs.

Cardiac damage occurs in human patients and ECG alterations suggesting myocardial damage can occur in dogs.

Miscarriage has also occurred in dogs after spread of the serovar across the placenta.

Patients suffering from the peracute form of the disease may exhibit severe symptoms such as rapid breathing and rapid, irregular pulse, coughing up of blood, tarry feces, nosebleed and petechial hemorrhage (red or purple spots on the skin).

They may be reluctant to move and very sensitive to pain or touch, and have enlarged lymph nodes.

Peracute infections usually move so fast that treatment is impossible to deliver in time.

Even with intensive care it is extremely unlikely the dog can be saved.

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