What are germs?

Germs are microorganisms that can cause disease or infection in humans, animals, and plants. They include bacteria, viruses, fungi, and protozoa. Germs can be spread through direct contact with an infected person, through the air, or through contaminated surfaces or objects. It is important to practice good hygiene, such as washing hands regularly and covering coughs and sneezes, to prevent the spread of germs and reduce the risk of getting sick.

Germs are microscopic organisms that live on our skin, in our bodies, and in the environment around us. They can be bacteria, viruses, fungi, or parasites. Some germs are harmless, while others can cause illness.

- Bacteria are single-celled organisms that can live in a wide variety of environments, including in the soil, water, and on our skin. Some bacteria are harmful, causing infections such as pneumonia, urinary tract infections, and food poisoning. Other bacteria are beneficial, helping to digest food and produce vitamins.
- Viruses are even smaller than bacteria and can only reproduce inside the cells of other organisms. Viruses can cause a variety of illnesses, including the common cold, flu, and AIDS.
- Fungi are a group of organisms that includes yeast, molds, and mushrooms. Some fungi are harmful, causing infections such as athlete's foot and ringworm. Other fungi are beneficial, helping to break down organic matter and produce antibiotics.
- Parasites are organisms that live off of other organisms. Some parasites are harmless, while others can cause serious illness. Malaria, for example, is a parasitic infection that can be fatal.