Mahdi Alnajai is a lab specialist at Jazan University, Jazan, KSA. He graduated from the Faculty of Applied Medical Sciences, University of King Abdul Aziz in the field of laboratory technology in 2009. He has held various positions throughout his career, starting as a lab specialist at King Khalid University Hospital, King Saud University, KSA, from 2009 to 2019. During that time, Mr.Alnajai served in several positions, including Senior of Routine Chemistry, Senior of TDM & Toxicology, Senior of Endocrine Section, and Safety Officer and QC Coordinator. He was responsible for the processing and supervising of the Clinical Biochemistry Lab at King Khalid University Hospital. Currently, he holds the position of head of the Laboratory Department at Jazan University Hospital, Jazan University, KSA. Concurrently, he has been a member of several committees, has supervised vaccination for students, has supervised vaccination for the COVID-19 virus, and has been a member on research committees. On top of that, he has a deep passion for medical research and thus is involved in multiple research groups.