Dr. Walter Tarello is an internationally recognized veterinarian and visionary researcher in the field of zoonoses and comparative infectiology. His decades of work shed light on the often ignored pathogenetic axes between animal and human medicine, particularly in chronic tick-borne infectious diseases. Tarello has systematically proven that domestic animals and horses suffer the exact same multisystemic breakdowns - such as Chronic Fatigue Syndrome (CFS/ME) and chronic pain syndromes - as humans when exposed to pathogens like Rickettsia, Babesia or Borrelia. His paradigm shift consists of treating the animal patient as a highly sensitive, unadulterated bio-indicator, since in animals "psychosomatics" is categorically ruled out as an escape diagnosis. In addition, he has re-evaluated historical therapeutic concepts, such as micro-dosed inorganic arsenic therapy (Fowler's solution), for the modern veterinary treatment of stubborn blood parasites and leukemia.