Prof. Daiju Sakurai received his M.D. from Chiba University, Japan, in 1997, and earned his Ph.D. from the Graduate School of Medicine at the same institution in 2003. Following a residency in Otorhinolaryngology at Chiba University Hospital, he served as an Assistant Professor (2004) and later as a Lecturer (2011). From 2005 to 2007, he furthered his research as a Visiting Researcher at the Karolinska Institute in Sweden.

Since 2019, he has served as Professor at the Department of Otorhinolaryngology Head and Neck Surgery, University of Yamanashi, and was appointed Director of the Allergy Center at University of Yamanashi Hospital in 2021. His research interests focus on allergy and head and neck tumors. He is an active member of several professional organizations, including the Japanese Society of Otorhinolaryngology-Head and Neck Surgery, the Japanese Society of Allergology, and the Japanese Rhinologic Society.