02/06/2020, at 16:00
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ABSTRACT: Host-associated microbiomes play a variety of important roles in host health and disease. Attempts to understand and make predictions about complex host-microbiome interactions have led many researchers to talk about microbiomes—especially human-associated ones—in terms of being either healthy or dysbiotic. In this presentation I will look at some alternatives for making sense of “healthy microbiome” talk. I will argue that existing “naturalistic”, or non-evaluative, accounts of human health are not appropriate for microbiomes, and that notions of ecosystem health face similar shortcomings. These problems suggest that “microbiome health” might only be definable in evaluative terms and may never extend beyond a metaphor to organismal health. I will end by looking at some possibilities for understanding overall host health given the importance and ubiquity of microbiomes.