You might want to read this thread for some suggestions on how to kill bartonella
https://www.healingwell.com/community/default.aspx?f=30&m=4315526In particular, there is a risk of bartonella being resistant to rifampin. I had this problem, and rifampin didn't work.
These videos also suggest some treatment protocols for bartonella:
https://www.healingwell.com/community/default.aspx?f=30&m=4329145