“…The term blood microbiome refers to the collection of genomes or genomic fragments from all the microorganisms, that is the DNA and/or RNA, while microbiota refers to viruses (Liang and Bushman, 2021;Cebria-Mendoza et al, 2021), bacteria (Damgaard et al, 2015) and fungi (Panaiotov et al, 2018) found in the blood. Next-generation sequencing technology has been used to identify viruses, bacteria, archaea, and fungi in the blood of healthy individuals (Morgan and Huttenhower, 2012;Paisse et al, 2016;Panaiotov et al, 2021).…”