Tobias, native of Switzerland, spent most of his formative years in Basel. Favorite activities there include tennis, Fasnacht, and swimming in the Rhine on hot summer days. At the age of 18, he moved permanently to the US in 1990 to attend Duke University.  After undergraduate research stints at the Biocenter (with Jeff Schatz) and the Whitehead institute (with Harvey Lodish), Tobias moved to New York in 1993 to enroll in the Tri-Institutional MD-PhD Program. As graduate student, Tobias studied the mechanisms of SNARE complex formation and disassembly in Jim Rothman’s lab and explored the potential of genetically encoded reporters of biological function under Gero Miesenböck. Tobias went on to train in internal medicine and infectious diseases and joined Eric Pamer’s lab for post-doctoral studies in fungal pathogenesis and immunology. In 2009, Tobias started his own laboratory-based research program at Fred Hutchinson Cancer Research Center with a focus on human fungal pathogens, antifungal immunity, and, more recently, on the mycobiota and antifungal drug resistance. He relocated to Memorial Sloan Kettering in 2013 where he is now the Chief of the Infectious Disease Service. Outside the lab, Tobias loves to explore New York on foot, play board games with his kids, listen to Lana Del Rey and NPR, and head to the Western Catskills to swim, lounge, and enjoy nature.