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This set contains the key vocabulary words from the 4th grade Open Court Reading story: "Medicine: Past and Present".


a disease that kills a large number of people
The Black _______ killed many people.


having germs that cause a disease
His foot became infected after he stepped on a sharp ______.


tiny organisms or germs too small to be seen without a microscope
Use a microscope to view the ____________.


special substances produced by the body that destroy or weaken germs
________ fight germs.


________ can cause disease.


special substances used to protect a person or animal from a disease
Did you get your flu ___________ yet?

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