The COVID-19 pandemic has shaken to the core the daily life of the world´s population and made fundamental changes to how people relate to one another. Like all great changes, this new situation has caused a variety of reactions, and as is always the case in troubled times, people have used folklore to express their concerns and fears. This chapter analyses some of the rumors that have circulated about the coronavirus and which exemplify how people have reacted to these circumstances in an attempt to find (very often quite unlikely) answers to questions and doubts about the origin of the virus, how to cure it, and vaccines. The aim is to use folklore to show how people express their doubts and fears in the face of the changes that are transforming society and even resort to humor to relieve the tension of such delicate situations.