My dog had ehrlichia. Can she get it again, or will it be chronic?
That is a great question, and one that doesn't really have a crystal clear answer. If she was initially treated during the acute phase, its possible that that bacteria was completely eliminated. It is possible that the antibodies produced by her body may prevent a second infection, however there is no guarantee of this. If a second infection develops, it is more likely to be subclinical, and it may or may not ever progress to being chronic and symptomatic. Having said all of that, I wouldn't be overly stressed. Use a monthly tick prevention moving forward, and if she develops any symptoms of illness, take her to your vet. https://www.petcarerx.com/article/identify-ehrlichiosis-symptoms-at-all-3-stages-of-the-disease/1545
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Updated on September 23rd, 2025