Dr John S. Tregoning is a scientist and researcher whose work focuses on how viruses and bacteria infect the lungs and how our immune system fights them. He is currently reader in respiratory infections at Imperial College London, where he runs a research group on infectious diseases. John has published over sixty academic papers and had a regular column in Nature during the COVID-19 pandemic. He has written articles for Times Higher Education and Science, and has been interviewed by outlets including the BBC and Sunday Telegraph. He tweets at @DrTregoning.