Melvin Sanicas, MD, is a physician, scientist, and medical communicator with a very strong social media presence. On top of his day job as medical director at Takeda Vaccines (Zurich, Switzerland), he does pro bono work for many not-for-profit organisations, including the WHO (as a digital health expert since 2019), the World Economic Forum, and TEDEd. In addition, he is a fellow of the Royal Society of Tropical Medicine and Hygiene, the Royal Society for Public Health, and the Royal Society of Arts. I am delighted to have interviewed Melvin for this issue of Medical Writing (MEW) on social media.