Prof. Osvalda De Giglio, who graduated in Biological Sciences from the University of Bari, is Associate Professor in General and Applied Hygiene (SSD MED/42) at the Interdisciplinary Department of Medicine of the University of Bari A. Moro, as well as Level I Biologist, who carries out her assistance activities at the Laboratory of Environmental and Food Hygiene of the Complex Operative Unit of Hygiene of the University Hospital Consortium Policlinico di Bari. Having passed the State Examination for qualification as a Biologist at the University of Bari, she completed her training at the same University, obtaining the title of Specialist in ‘Microbiology and Virology’ and a PhD in ‘Hygiene, Public Health and Food Safety’. From 2008 to the present, she has been involved in research on environmental and food hygiene, in particular on the topic of water (Legionella), hospital hygiene and laboratory diagnostics.