Vladimir Zajac has completed his PhD. in 1982 at the Cancer Research Institute of Slovak Academy of Sciences in Bratislava (Slovakia), where he worked as the Head of Department of Cancer Genetics from 1996 to 2010. He joined the Medical Faculty of the Comenius University as Associate Professor of Genetics in 2007. He was the supervisor of eight PhD students. He has published 77 works, mostly in renowned journals, and is the author of chapters in four professional books. He is the editor of the book "Bacteria, Viruses and Parasites in the AIDS Process" (In Tech, 2011).

Jelena Prpic is a Croatian Scientist specializing in veterinary and molecular biology. Born on September 14, 1981, she holds a Doctorate in Biology from the University of Zagreb. She started her career at the Croatian Veterinary Institute in 2007, progressing through roles to become a Scientific Associate in 2021. Prpic's research focuses on virology, including hepatitis E virus in animals, and she has also contributed to studies on phytoplasms. She has been involved in teaching at the Faculty of Science in Zagreb since 2016.