Dr. Arastehfar has a strong background in molecular diagnostic tools to detect fungal species, especially yeasts, from clinical samples. Moreover, he has thoroughly studied the molecular epidemiology of invasive Candida/yeast infections and mechanisms of antifungal resistance. In 2019, he defended his PhD thesis: Development of Fungal Identification Tools and Evaluation of Microbiological and Clinical Profiles of Candida Species from Iran. His current research revolves around the identification of pathways involved in echinocandin tolerance in Candida glabrata.