Relationship between microorganism and human health

Some microorganisms are pathogenic: some harmful fungi, bacteria and viruses often cause human inflammation. Pneumonia-bacteria. Aids-HIV.

Some microorganisms are beneficial: in food-yogurt (lactic acid bacteria fermentation); There are also many microorganisms in the human body, especially the intestines. If the microbial ecology in the intestine is unbalanced, it will lead to intestinal dysfunction.