# A Nobel Prize winner ignored the congratulatory call as she thought it was “spam”, while another is on a hiking trip. Scientists Mary Brunkow, Fred Ramsdell and Shimon Sakaguchi won the 2025 Nobel Prize for Medicine. They identified the importance of what are now called regulatory T cells that act as the immune system’s security guards and keep immune cells from attacking a person’s own body. Brunkow said she ignored a call from the Nobel Committee because she thought it was spam. Ramsdell is on a backpacking trip and doesn’t know about his win.
Nobel Prize committee unable to reach winner on his hike, while another thought it was spam