A few pounds of bacteria is said to live inside our bodies. These bacteria come in good and bad variations, or more to the fact, it can be helpful or harmful. While the most amount of attention is given to the bad kinds because of their potential for creating illness, humans share a necessary related relationship with many types of helpful bacteria. Some are important to our existence. The largest concentration of bacteria in the human body is found in the intestines. Species numbering in the thousands create trillions of quiet passengers operating together. The relationship between the different strains of bacteria and the human body is an active one, constantly adjusting to changing conditions.
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