Microbes (Microorganisms)
A microscopic living organism. Examples include bacteria, protozoa, and some fungi and parasites. Viruses are also called microbes.
About Microbes
Microbes are tiny organisms – too tiny to see without a microscope, yet they are abundant on Earth. They live everywhere – in air, soil, rock, and water. Some live happily in searing heat, while others thrive in freezing cold. Some microbes need oxygen to live, but others do not.
These microscopic organisms are found in plants and animals as well as in the human body. Some microbes cause disease in humans, plants, and animals. Others are essential for a healthy life, and we could not exist without them. Indeed, the relationship between microbes and humans is delicate and complex.
Most microbes belong to one of four major groups: bacteria, viruses, fungi, or protozoa.
A common word for microbes that cause disease is “germs.” Some people refer to disease-causing microbes as “bugs.” “I’ve got the flu bug,” for example, is a phrase you may hear during the wintertime to describe an influenza virus infection…Read more about Microbes NIH – National Institute of Allergy and Infectious Diseases