This document summarizes information about feline bartonellosis and its zoonotic potential. It discusses how 14 Bartonella species can be transmitted from cats to humans, primarily through flea feces or scratches. Clinical signs in humans range from self-limiting lymphadenopathy to more severe infections in immunocompromised individuals. Diagnosis involves serology, culture, or molecular methods from blood or tissue samples. Preventive measures include flea control in cats and avoiding contact with cat scratches/bites for humans. The research project aims to study Bartonella prevalence in cats and children in Greece and identify prevention strategies to protect public health.