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Reply To: Adopted heartworm+ dog – need advic

April 13, 2016 at 2:42 pm #85094 Report Abuse
Karen D
Member

From what I understand, the dog is retested for heartworms 4-6 after heartworm treatment. So I wait 4-6 months before giving the heartworm preventive? Can’t they just get reinfected during that time?