occurs in has participant interaction host-microbiome interaction microbiome-host interaction https://genomebiology.biomedcentral.com/articles/10.1186/s13059-019-1669-4 Oliver He, Jie Zheng, Jihad Obeid, Anna Maria Masci A biological interaction between a microbiome and its host https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4644880/ microbiome host anatomical entity