ABSTRACT

“Microbiome” is the term that exists over 50 years in regular global use; however, it gained augmented popularity among public health community in the last few years. The word collectively depicts the entirety of microorganisms residing in and on a particular setting/environment. Of late, owing to the recent advent of novel culture-independent molecular analyses, especially metagenomics and next-generation sequencing technologies, it really becomes easier to classify diverse microorganisms of any ecosystem, i.e. microbiota. It is scientifically evident that nearly 100 trillion symbiotic microorganisms co-exist with human, pivotally playing significant roles in health and illness. Still, a plenty of health-care professionals have an elementary-level understanding about microbiome in healthy individuals. Therefore, in this chapter, we make an attempt to exemplify the structure and functional roles of microbiome associated with specific organs of healthy individuals.