Wellcome Trust Sanger Institute Dec 2 2025 People who persistently carry  Staphylococcus aureus  ( S. aureus ) in their nose have fewer species of other bacteria, while certain bacteria may help to prevent  S. aureus  colonization.  These are the findings of the largest-ever study of the nasal microbiome , published today (2 December) in  Nature Communications.  In the study, researchers at the Wellcome Sanger Institute, University of Cambridge, the University of Birmingham, and Imperial