“Germs” is a common term used for bacteria, viruses, fungi, and some parasites. They are found everywhere. Some germs help us to stay healthy. However, many different germs can lead to infection or disease. Infection from germs can be spread from person to person, or from the environment to person, which is called communicable disease. Germs can spread in many ways:
- Through the air. Usually in droplets that are coughed, sneezed, or breathed into the air by a person who is infected. Some germs such as the common cold, influenza, and mumps travel short distances. Others, such as measles and chickenpox, stay in the air longer and can travel longer distances.
- By contact. For some diseases this needs to be direct person-to-person contact with an infected person. In other cases, germs are spread by indirect contact – contact with an object that has germs on it. Some of the infectious diseases spread by contact are pink eye, impetigo, and norovirus.
- Blood or body fluid. Some diseases can be spread through contact with blood or other infectious body fluids. When the infectious blood or body fluid contacts an area where it can enter the body, such as an eye, mouth, other mucous membrane, or broken skin, the disease can potentially be transmitted. Examples of the diseases spread in this way are HIV, hepatitis B, and hepatitis C.
- Food or water. This is how food-borne illness occurs. Some of the diseases spread in this way are Salmonella, E. coli, and listeriosis.
- By insects or animals. Some of the diseases spread in this way are Lyme disease, West Nile virus, psittacosis, and rabies.
Many germs spread in more than one way. For example, the influenza virus can be spread in droplets in the air or by contact with a tissue that someone with the flu has used to blow their nose.
It takes very few germs to cause an infection. Just because something looks clean does not mean that it is. Therefore, it is important for your child care to have policies and procedures in place that will protect the children and staff from becoming infected.


