Yahya Shabi is a faculty member in the Department of Microbiology and Clinical Parasitology, College of Medicine, King Khalid University, Abha, Saudi Arabia. His research focuses on clinical microbiology and antimicrobial resistance in southern Saudi Arabia, with particular emphasis on long-term, laboratory-based surveillance of Gram-negative pathogens such as Klebsiella, Enterobacter and Citrobacter species, carbapenem non-susceptibility, carbapenemase genotypes and difficult-to-treat resistance. He also works on antimicrobial stewardship, including the pharmacist-supervised review of antimicrobial prescribing in hospital wards. He is the corresponding author of a collaborative research program that links King Khalid University with Aseer Central Hospital and other hospitals in the Aseer region, and he has published several peer-reviewed studies on hospital antimicrobial resistance trends in 2026. His work aims to turn routine hospital laboratory and clinical records into evidence that supports local empirical therapy guidance, infection prevention and antimicrobial stewardship programs.