Hasan Jafri has held various roles in different companies and institutions, showcasing their expertise in clinical research, infectious diseases, and vaccines. Hasan has experience in leading and coordinating research projects, development teams, and clinical trials. Hasan also has a strong background in pediatric infectious diseases and clinical pharmacology. Hasan's educational background includes a fellowship in pediatric infectious diseases, a residency in pediatrics, and an internship in pediatrics.