Ticks can transmit many serious medical conditions to dogs. One of which is from the bacteria known as Ehrlicha. In today's post, our Snellville vets discuss ehrlichiosis in dogs, as well as the symptoms and treatment of this disease.
Tick-borne Diseases in Dogs: Ehrlichiosis
What is ehrlichiosis in dogs? This is a disease caused by Ehrlichia bacteria. This bacteria is spread through the bite of an infected brown tick. The organism which is spread by the ticks and causes the disease (Ehrlichia canis or E. canis) is considered endemic to the southeastern and southwestern states. Ehrlichia bacteria can be challenging to treat since most antibiotics are unable to reach the inside of the cell where they live.
Ehrlichiosis Symptoms in Dogs
The symptoms of Ehrlichia are associated with three different stages, early disease (acute phase), sub-clinical (no outward appearance of disease), and clinical or chronic (long-standing infection).
Acute Phase
The acute stage of ehrlichiosis can last 2 to 4 weeks, during which the infection is either eliminated or your dog will progress to the sub-clinical phase. Symptoms of the acute stage include:
- Swollen lymph nodes
- Weight loss
- Respiratory distress
- Bleeding disorders (spontaneous hemorrhage or bleeding)
- Fever
- Neurological disturbances (meningitis or unsteady on feet)
Sub-Clinical Phase
The sub-clinical phase is often considered the worst phase of ehrlichiosis in dogs because there may be no outward sign of the disease, meaning that it can progress undetected.
In some cases, the disease is detected when the vet notices prolonged bleeding from the injection site after taking a blood sample. If the organisms are not eliminated in this stage, your dog’s infection may move to the next stage - clinical ehrlichiosis.
Clinical Phase
Clinical (chronic) ehrlichiosis in dogs occurs when the organism isn’t eliminated by the immune system in one of the previous stages. This stage can lead to serious symptoms, including:
- Lameness
- Swollen limbs
- Neurological problems
- Bleeding episodes
- Anemia
- Eye problems (such as blindness or hemorrhage in the eyes)
This phase becomes extremely serious if the dog's bone marrow (where blood cells are produced) fails, meaning that your dog will be unable to create any blood cells it needs to sustain life (platelets, white blood cells and red blood cells).
Diagnosing Ehrlichiosis in Dogs
Early diagnosis of this disease can be difficult as the symptoms may not be consistent.
Because the immune system usually takes two to three weeks to respond to the presence of the organism, and for antibodies to develop, it may take testing at a later date to detect antibodies and properly diagnose the infection.
Your veterinarian may use a few different tests to find out which species of Ehrlichia are infecting your dog, then send the tests to our lab for analysis. Because we have an onsite lab and diagnostic testing at Snellville Animal Hospital, we’re able to get results quickly and efficiently.
The detection of antibodies, combined with certain clinical signs are your vet’s primary diagnostic criteria. More rarely, the organism will be detected in blood smears or cell samples from the spleen, lungs and lymph nodes. Baseline blood tests, including a blood cell count and chemistry, should also be completed.
If anemia (low red blood cell counts, high levels of globulin protein or a low platelet count) are spotted in the blood, this is a good indication that ehrlichiosis is the problem.
What is the treatment for ehrlichiosis in dogs?
Some dogs experience severe bleeding and anemia when infected with Ehrliochosis and may require a blood transfusion during treatment.
Antibiotics such as the easily accessible and typically well-tolerated doxycycline may be used for about four weeks. Depending on your pup’s clinical state and blood parameters, different medications such as steroids may be prescribed.
Can ehrlichiosis in dogs be cured?
Generally, the prognosis for dogs suffering from ehrlichiosis is fairly good. Once your pet begins treatment you should see an improvement in your dog's condition within 24 to 48 hours, if the disease was caught in its acute phase or mild chronic phase.
How to Prevent Ehrlichiosis in Dogs
Like all other diseases and conditions, it is easier to prevent the issues than to treat them. Try to ensure there are no ticks in your dog’s environment by using the tick prevention product that your vet recommends for your pooch. The right tick prevention for your dog will depend upon your pup's risk of exposure to disease-causing ticks and other factors. Your vet will have more information on protecting your furry friend.
Note: The advice provided in this post is intended for informational purposes and does not constitute medical advice regarding pets. For an accurate diagnosis of your pet's condition, please make an appointment with your vet.