What are the uses of bacteria in medicine? What is the merit of Russian scientists in the development of this direction.

In medicine, bacteria are often used. We know that many diseases are caused by bacteria. Therefore, in medicine, vaccines are often created to create immunity in humans. Vaccines are created from weakened bacteria. Also, bacteria are used to create the necessary substances, to restore the intestinal microflora, and so on. Many Russian scientists have studied bacteria. For example – Ilya Mechnikov. Thanks to the contribution of scientists, many diseases have been defeated, and now bacteria are used in various spheres of life.