Dr. Callegari received her veterinary degree in 2005 from the University of Milan. From 2005 to 2010 she worked as an internal medicine, emergency and critical care assistant for different private veterinary clinics. From December 2010 she carried out his professional activities at the Istituto Veterinario di Novara as an internist. She holds the title of European Specialist in Internal Medicine (Dipl ECVIM - CA (Internal Medicine)) in 2016. She is a lecturer at national and international courses, she also is a member of one of the major continuous education societies in Italy (UNISVET), as head of the internal medicine service. She is also an author, co-author and reviewer of scientific papers for national and international journals.