Germs are a part of everyday life and are found in our air, soil, water, and in and on our bodies. Some germs are helpful, others are harmful. Many germs live in and on our bodies without causing harm and some even help us to stay healthy. Only a small portion of germs are known to cause infection.
How Do Infections Occur?
An infection occurs when germs enter the body, increase in number, and cause a reaction of the body.
Three things are necessary for an infection to occur:
Source: Places where infectious agents (germs) live (e.g., sinks, surfaces, human skin)
Susceptible Person with a way for germs to enter the body
Transmission: a way germs are moved to the susceptible person
Answers & Comments
Answer:
Germs are a part of everyday life and are found in our air, soil, water, and in and on our bodies. Some germs are helpful, others are harmful. Many germs live in and on our bodies without causing harm and some even help us to stay healthy. Only a small portion of germs are known to cause infection.
How Do Infections Occur?
An infection occurs when germs enter the body, increase in number, and cause a reaction of the body.
Three things are necessary for an infection to occur:
Answer:
through the derict transfer of bacteria or virus from one person to another