Great Bartonella pioneers from past decades have suggested doxycycline as a treatment. We appreciate these pioneers.
Yet you can “drown a horse in doxycycline and it will do nothing.” [2014 lecture].
I asked Dr. Breischwerdt if he has adjusted that position in over ten years. He kindly added:
“Doxycycline is useful against Bartonella only in the acute phase.” Meaning, a very recent bite from one of 12 possible insects carrying Bartonella can be treated with doxycycline.” If you caught this highly common infection six months ago it is worthless,
Source: The Diagnosis and Treatment of Bartonella (pending) & Dr. Edward Breischwerdt of Galaxy Diagnostics, who is the leading world expert.