Bacteria and fungi are interdependent with human beings and all living things in nature. From the point of view of human health, bacteria and fungi can be simply divided into pathogenic microorganisms and beneficial bacteria. Pathogenic microorganisms are microorganisms that can cause diseases, but not absolutely. A large number of normal flora in human body will cause diseases when the flora is out of balance. Beneficial bacteria are bacteria that are beneficial to the human body, such as bacteria in the intestine, which can produce vitamin K. For example, lactic acid bacteria are necessary for the human body, so fungi are easier to understand. There are far more beneficial bacteria than pathogenic bacteria in nature, but they can be transformed into each other under different environmental conditions. Bacteria are the smallest thing that can harm the human body, but they are extremely harmful. Hehe, bacteria and fungi are interdependent with human beings and all living things in nature. From the point of view of human health, bacteria and fungi can be simply divided into pathogenic microorganisms and beneficial bacteria. Pathogenic microorganisms are microorganisms that can cause diseases, but not absolutely. A large number of normal flora in human body will cause diseases when the flora is out of balance. Beneficial bacteria are bacteria that are beneficial to the human body, such as bacteria in the intestine, which can produce vitamin K. For example, lactic acid bacteria are necessary for the human body, so fungi are easier to understand. Common pathogenic bacteria such as Aspergillus flavus and Candida albicans, and beneficial bacteria such as Cordyceps sinensis, yeast and Ganoderma lucidum. There are far more beneficial bacteria than pathogenic bacteria in nature, but they can be transformed into each other under different environmental conditions. I hope it helps you.