Staphylococcus aureus and the ecology of the nasal microbiome

Cindy M Liu, Lance B Price, Bruce A Hungate, Alison G Abraham, Lisbeth Aagaard Larsen, Kaare Christensen, Marc Stegger, Robert Skov, Paal Skytt Andersen

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review


The human microbiome can play a key role in host susceptibility to pathogens, including in the nasal cavity, a site favored by Staphylococcus aureus. However, what determines our resident nasal microbiota—the host or the environment—and can interactions among nasal bacteria determine S. aureus colonization? Our study of 46 monozygotic and 43 dizygotic twin pairs revealed that nasal microbiota is an environmentally derived trait, but the host’s sex and genetics significantly influence nasal bacterial density. Although specific taxa, including lactic acid bacteria, can determine S. aureus colonization, their negative interactions depend on thresholds of absolute abundance. These findings demonstrate that nasal microbiota is not fixed by host genetics and opens the possibility that nasal microbiota may be manipulated to prevent or eliminate S. aureus colonization.
TidsskriftScience Advances
Udgave nummer5
Antal sider7
StatusUdgivet - jun. 2015


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