World Microbiome Day
World Microbiome Day is held on June 27. Was launched by the APC Microbiome Ireland. Microbiomes are communities of bacteria, fungi and virus that are found everywhere, from inside our bodies to soil and water. This event in the third decade of the month June is annual. 
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The human body has more microbes than there are human cells. In fact, microbes are ten times more than the number of human cells in a living human being. The microbiome may weigh as much as five pounds. The bacteria in the microbiome help digest our food, regulate our immune system, protect against other bacteria that cause disease, and produce vitamins including B vitamins B12, thiamine and riboflavin, and Vitamin K, which is needed for blood coagulation. The human mouth has approximately 500 bacteria species.
Each person has an entirely unique network of microbiota that is originally determined by one's DNA. A person is first exposed to microorganisms as an infant, during delivery in the birth canal and through the mother's breast milk.
Similar holidays and events, festivals and interesting facts
International Rosé Day on June 26 (Celebrated on the 4th Friday of June);
World Refrigeration Day on June 26
World Day against the abandonment of domestic animals on June 27 (Held on the last Saturday of June);
International Day of Deafblind Persons on June 27
International Body Piercing Day on June 28
World Industrial Design Day on June 29
World Scleroderma Day on June 29
Roman Pontiff Day on June 29
National Day of Reserves of Biosphere and Biological Corridors of El Salvador on June 29 (Día Nacional de la Biósfera y los Corredores Biológicos de El Salvador)