Host microbiota can facilitate pathogen infection

Animals live in symbiosis with numerous microbe species. While some can protect hosts from infection and benefit host health, components of the microbiota or changes to the microbial landscape have the potential to facilitate infections and worsen disease severity. Pathogens and pathobionts can expl...

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Main Authors: Stevens, EJ, Bates, KA, King, KC
Format: Journal article
Language:English
Published: Public Library of Science 2021
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author Stevens, EJ
Bates, KA
King, KC
author_facet Stevens, EJ
Bates, KA
King, KC
author_sort Stevens, EJ
collection OXFORD
description Animals live in symbiosis with numerous microbe species. While some can protect hosts from infection and benefit host health, components of the microbiota or changes to the microbial landscape have the potential to facilitate infections and worsen disease severity. Pathogens and pathobionts can exploit microbiota metabolites, or can take advantage of a depletion in host defences and changing conditions within a host, to cause opportunistic infection. The microbiota might also favour a more virulent evolutionary trajectory for invading pathogens. In this review, we consider the ways in which a host microbiota contributes to infectious disease throughout the host’s life and potentially across evolutionary time. We further discuss the implications of these negative outcomes for microbiota manipulation and engineering in disease management.
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spelling oxford-uuid:7f47c2d7-ce1c-4c03-a15a-efdde541a2142022-03-26T21:15:59ZHost microbiota can facilitate pathogen infectionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7f47c2d7-ce1c-4c03-a15a-efdde541a214EnglishSymplectic ElementsPublic Library of Science2021Stevens, EJBates, KAKing, KCAnimals live in symbiosis with numerous microbe species. While some can protect hosts from infection and benefit host health, components of the microbiota or changes to the microbial landscape have the potential to facilitate infections and worsen disease severity. Pathogens and pathobionts can exploit microbiota metabolites, or can take advantage of a depletion in host defences and changing conditions within a host, to cause opportunistic infection. The microbiota might also favour a more virulent evolutionary trajectory for invading pathogens. In this review, we consider the ways in which a host microbiota contributes to infectious disease throughout the host’s life and potentially across evolutionary time. We further discuss the implications of these negative outcomes for microbiota manipulation and engineering in disease management.
spellingShingle Stevens, EJ
Bates, KA
King, KC
Host microbiota can facilitate pathogen infection
title Host microbiota can facilitate pathogen infection
title_full Host microbiota can facilitate pathogen infection
title_fullStr Host microbiota can facilitate pathogen infection
title_full_unstemmed Host microbiota can facilitate pathogen infection
title_short Host microbiota can facilitate pathogen infection
title_sort host microbiota can facilitate pathogen infection
work_keys_str_mv AT stevensej hostmicrobiotacanfacilitatepathogeninfection
AT bateska hostmicrobiotacanfacilitatepathogeninfection
AT kingkc hostmicrobiotacanfacilitatepathogeninfection