Parts of your body that work together to fight disease

To make someone sick

To keep a person or an item safe from harm or illness

Something wrong with your body that shows you are sick

A substance used to keep people from getting a disease

Tiny living thing that causes diseases

To move and affect a larger area

To stay away from a person or thing

To take over and cause something to stop working

Something people can't understand or explain

to have or hold something

to be put in a situation that is dangerous or unpleasant

not often seen or found

to send someone to a place for a job or responsibility

to provide proof that something is true

to figure out the facts or truth about something