Another name for germs because they are so tiny.

Viruses need to be inside this so they can grow and multiply.

Diseases that are not spread from person to person are called this.

This is an illness that prevents the body from working normally.

Vaccines help your body be less vulnerable to germs. What other word means "vulnerable"?

This is an individual plant, animal, or single-celled life form.

This protects our bodies from bacteria and viruses and includes white blood cells and antibodies that fight germs.

This is a treatment that makes the body stronger against infections and diseases.

These are signs of a disease such as coughing or fever.

These diseases are contagious and spread from person to person.

Disease causing germs such as viruses and bacteria are also known as...

White blood cells create these to fight diseases.