Why is my dog still testing positive for e Canis after treatment?

If Lacey was found to be positive on a routine screening test as part of her yearly exam, it could be indicative of exposure to Ehrlichia but not an active infection. Ehrlichia is a type of tick borne disease that infects the white blood cells in a dog. If she isn't sick, I would recommend she have a blood test done called a complete blood cell count, or CBC. This measures and examines the red and white blood cells. If normal, she has been exposed and no further treatment is needed at this time. If abnormal her veterinarian may start her on a course of an antibiotic (doxycycline).

I'm sorry for your frustration, but there may be a solution. Most veterinarians use the Antibody test to detect Ehrlichia. Even with treatment, your dog may show a positive test for months or up to a year as the antibody is still being detected. In order to more accurately test if your dog has the disease, the newer blood test called a PCR assay can be submitted. This tests specifically for presence of the organism , not the antibodies. Please speak with your veterinarian about doing a different test as you may wait a very long time for the antibody test to be negative. I'm sure the newer test is probably more expensive, so be prepared to ask about the cost. Best of luck!

Thank you for using Petco Pet Education Center, formerly Petcoach! Itis good that Bruno is feeling better. Babesia gibsoni can be very hard to completely clear and is an infection that can remain in hiding/dormant with no outward clinical signs. Therapy with variety of different medications has been tried with varying success. Months (2-3) of therapy is often needed. It is important that control of the vector (ticks) be a priority in preventing reinfection if the current infection is cleared.

Many dogs will remain positive. Some others don't remain positive. Every dog is different. A dog is a living organism, not a machine. Every dog will be different. That is all I can tell you. We do not know why this is happening. It just is that way. Here is excellent information on this disease. Under "Treatment" you can read about "B. gibsoni infection: In most cases, the parasites are not totally eliminated.". http://www.vetfolio.com/infectious-disease/babesia-gibsoni-an-emerging-pathogen-in-dogs This is basically all the information we have and is known. Here is another article: https://www.sciencedirect.com/science/article/pii/S0304401718301018

Hello. As I said earlier, in some dogs B. gibsoni many NEVER clear the blood & will always test positive by PCR. This does not mean your dog has an active infection but total remission seldom occurs. There was a paper presented in 2017 where a dog was treated with clindamycin, doxycycline & metronidazole for 6 weeks, & was tested negative at 3 & 6 months after treatment was stopped, so you might want to discuss this with your veterinarian & see if this is possible for your pet. Thanks for using Petco Pet Education Center, formerly Petcoach.

It is possible but very rare for the test to be wrong (false positive) - repeat testing in 2-3weeks would provide more information. The test looks for antibodies (made by the dogs immune system in response to infection), some dogs become what is termed 'sub-clinical' - infected but without any clinical signs or alterations in blood cells, a phase which can last months or years before signs of disease are detected; regular blood counts should be considered to monitor for changes in such cases

Babesia, just like all the other tick borne diseases, can show up positive on the snap test, because the snap test confirms exposure and not always current infection. As long as Danny's bloodwork does not show current low platelets or anemia, then he is likely free of infection. Just expect him to be positive on the screening test for a while, and monitor him for any recurring symptoms, which would indicate a repeat infection. The fact that he is clinically ok now, is a good sign that he is free from true infection. : ) I would also make a point to keep him on a tick/flea preventative to help protect him from future infections. Best wishes with your pet Danny moving forward! Take care.