Peter C. Doherty is a prominent immunologist known for his groundbreaking work in understanding the immune system. He is particularly recognized for his research on how T cells recognize infected or cancerous cells. This significant contribution earned him the Nobel Prize in Physiology or Medicine in 1996, which he shared with Rolf Zinkernagel. Their findings opened new avenues for developing vaccines and therapies against various diseases, including cancer and viral infections. Doherty's research has implications beyond basic science; it has greatly influenced clinical practices in immunology and vaccine development. He has authored numerous publications and is a respected voice in the scientific community, advocating for better public understanding of immunology. His work emphasizes the importance of the immune system in health and disease. In addition to his scientific achievements, Doherty has taken on roles in science communication, aiming to bridge the gap between research and public awareness. He believes that educating the public about science is crucial for informed decision-making regarding health. His contributions extend to mentoring young scientists and promoting research in immunology both in Australia and internationally. Peter C. Doherty is a leading immunologist known for his significant contributions to the field, particularly in the understanding of T cell function. He received the Nobel Prize in Physiology or Medicine in 1996 for his work, which has critical implications for vaccine development and cancer therapies. Aside from research, Doherty is committed to science communication and education, working to enhance public understanding of immunology and mentoring future scientists.