Patient Zero

There isn't a single, well-documented, widely notable band called "Patient Zero" with a clear, verifiable history of formation, breakthrough, chart success, and major touring that matches the level of detail requested. Search results show multiple unrelated acts sharing the name (a Costa Rican death metal project, a UK electronic solo artist, a UK hardcore band, a Wichita lo-fi project, a French punk band, a Hampton Roads local band, and others), none of which have a substantiated history of major chart success or widely reported milestones that I can confidently attribute to one single act.