Human microbiota / Human microbiome

The term microbiome primarily refers to the genomic repertoire of the microbiota, although it is often used interchangeably with microbiota (1). The current evidence suggests that the ratio of microorganisms to human cells is approximately 1:1, with about 3.8 × 10^13 microorganisms compared to 3 × 10^13 human cells (2). This relation is noticeably higher when analyzing the genomes, microbial genetic content being 100 to 200 times superior to the content of our cells (3). The microbiome refers to the complete collection of genomes from the microbes that reside within our bodies. This includes bacteria, bacteriophages, [fungi](brain…