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  • Perspective
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Resident viruses and their interactions with the immune system

Abstract

The human body is colonized with a diverse resident microflora that includes viruses. Recent studies of metagenomes have begun to characterize the composition of the human 'virobiota' and its associated genes (the 'virome'), and have fostered the emerging field of host-virobiota interactions. In this Perspective, we explore how resident viruses interact with the immune system. We review recent findings that highlight the role of the immune system in shaping the composition of the virobiota and consider how resident viruses may impact host immunity. Finally, we discuss the implications of virobiota–immune system interactions for human health.

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Figure 1: Anatomical locations of resident viruses in humans.
Figure 2: Pathogenic viral infection results in the expansion of the enteric virobiota.
Figure 3: Model for bacteriophage recognition by antiviral innate immune sensors.

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Acknowledgements

Supported by a Ruth L. Kirschstein National Research Service Award F32 DK089718 (to B.A.D.), The Howard Hughes Medical Institute (to L.V.H.), US National Institutes of Health grant R01 DK070855 (to L.V.H.) and a Burroughs Wellcome Foundation Investigators in the Pathogenesis of Infectious Diseases award (to L.V.H.).

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Correspondence to Lora V Hooper.

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Duerkop, B., Hooper, L. Resident viruses and their interactions with the immune system. Nat Immunol 14, 654–659 (2013). https://doi.org/10.1038/ni.2614

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