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My dog has B. gibsoni but is healthy. Will he ever test negative?

Updated On September 23rd, 2025

Pet's info: Dog | German Shepherd | Male | 2 years and 7 months old

My dog came positive with b.gibsoni in May 2018 and till now on his blood work b.gibsoni is coming positive with platelets 140000 but he is showing no signs of any illness... he is completely fit active and eating well and playing well going on walks regularly but my question is when this b.gibsoni positive will going to clear from his blood smear report because it’s been two months and is coming still positive so when this Protozoa test will going t show negative ?

2 Answers

Most Helpful Answer

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Answered By Linda G, MS, DVM

Veterinarian

Published on July 24th, 2018

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.

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Other Answers

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    Answered By Andrea M. Brodie, DVM

    Veterinarian

    Published on August 21st, 2018

    It may never go into negative. Most Babesia gibsoni cases will stay positive all their life, but show no clinical illness. So as long as your dog is not showing clinical signs and appears healthy, you do not have to worry. Please read all the info we gave you over the past months. Nothing has changed. All you need to do is watch out for signs of illness and then have him treated. He will likely test positive for B. gibsoni all his life.

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