Guillem Mas Fiol

Guillem Mas Fiol is a Spanish microbiologist born in Felanitx, Mallorca, who currently conducts research at the prestigious Institut Pasteur in Paris. His work focuses on the bacterium Yersinia pestis, responsible for historical pandemics such as the Justinian Plague and the Black Death. Recently, he led an international team that discovered how this bacterium has reduced its virulence over centuries to enhance its survival and spread among populations, providing new insights into the evolution of pathogens.