First published in the United States by W.W.Norton and Company, on March 1 1997, Guns, Germs and Steel was initially subtitled ‘The Fates of Human Societies.’ Within a few months, this subtitle had ... There are germs, also called microbes, in the air; on food, plants and animals; and in the soil and water. Germs are on just about every surface, including the human body.

Understanding the Context

Most germs cause no harm. The immune system protects against things that cause infections, called infectious agents. Germs are tiny organisms that can cause disease. Learn about what germs do, the different kinds, and how to avoid them.

Key Insights

Germs, bacteria, viruses, fungi, and other microorganisms make up this hidden empire. Though often feared, especially during pandemics or flu seasons, these microscopic life forms are not just agents of disease. Many germs live in and on our bodies without causing harm. Some even help us to stay healthy. But some germs can make you sick.

Final Thoughts

Infectious diseases are diseases that are caused by germs. The main types of germs are bacteria, viruses, fungi, and parasites. How do germs spread? There are different ways that germs can spread, including: It states that microorganisms known as pathogens or "germs" can cause disease. These small organisms, which are too small to be seen without magnification, invade animals, plants, and even bacteria. Germs are living things that can be found everywhere, from the air to the ground to your body.

The main types of germs are bacteria, viruses, fungi and protozoa. Understanding germs is essential for student health literacy and disease prevention. This lesson explores microorganisms through scientific inquiry and practical application.