A small pilot study has found evidence of human co-infections from Bartonella and Babesia odocoilei, a protozoal tick-borne infection primarily found in deer, moose and other cervids. The co-infections were detected in six of seven patients suffering from chronic, non-specific illness, who were enrolled in a Bartonella study. The work presents some of the first definitive DNA evidence of this strain of Babesia infection in humans, and could impact treatments for patients with Bartonella, Borrelia or Babesia infections. Bartonella are a group of vector-borne bacteria transmitted primarily via arthropods like fleas, lice and potentially ticks, but also by the animals...