Tick fever AKA tracker dog disease. It's a bacterial infection carried by the lone star tick. The medical name is canine ehrlichiosis.
My GSP was diagnosed in August of 2016. The only reason they caught it was because my vet knows he hunts in tick infested terrain so they screen for it annually. His basic symptoms at the time were a general lack of energy and paleness of the gums.
He was put on a very heavy dose of doxycycline - 300mg twice a day for a month. My wife (a nurse) said this is borderline toxic for a human.
In any case, it worked. But the problem is now that he's had it, he will always test positive.
