Bartonella vinsonii is a gram-negative bacteria from the genus of Bartonella which was isolated from dogs Rochalimaea vinsonii was reclassified to Bartonella vinsonii Bartonella vinsonii contains the two subspecies Bartonella vinsonii subsp. vinsonii and Bartonella vinsonii subsp. berkhofli. Bartonella vinsonii subsp. vinsonii has been isolated from voles and Bartonella vinsonii subsp. berkhofli was isolated from a dog with endocarditis. Bartonella vinsonii subsp. berkhoffii can cause diseases in humans. Those two subspecies are named after J. William Vinson and Herman A. Berkhoff.