Is it true that all microbes are harmful to humans?

Microbes such as bacteria, yeast, and fungi are used in a variety of applications, including food production, fermentation, and biotechnology. In addition, the human body contains trillions of microbes that make up the microbiome, which plays a critical role in maintaining our health and well-being. While some microbes can cause diseases and infections in humans, many are beneficial and essential for human health. Therefore, it is incorrect to assume that all microbes are harmful to humans.