Thus, during a normal birth the baby will be exposed to this and other microbes that prepare to digest breast milk. This, incidentally, is home to over 600 species of bacteria, as found in another study Khaterine M. Hunt, University of Idaho, USA.
Bacteria acquired at birth are forming communities that stay with us throughout life; that is, they change to go adapting to the development of our body and the conditions in which we find ourselves, as humidity, temperature, what people eat and the drugs they take (Gevers, et.al, 2012). That is why the composition of the microbiome is unique to each individual. When they released the results of PMH, Curtis Huttenhower, one of the researchers on the project, said that managed to establish that ‘microbial signature of each person is unique, very similar way to how the genome of an individual is