Microorganisms are tiny organisms found everywhere, including surfaces, air, soil, water, and even within our bodies. They encompass bacteria, fungi, and protists, and play both beneficial and harmful roles.

Beneficially, they produce antibiotics, aid in health (probiotics), and contribute to food production (Corynebacterium glutamicum). However, they can also pose threats, causing diseases (Yersinia pestisMycobacterium tuberculosis) and food contamination (Aspergillus flavus).

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