10 Disease Words

5. a disorder of structure or function in a human, animal, or plant, especially one that has a known cause and a distinctive group of symptoms, signs, or anatomical changes.
8. the state of being exposed to contact with something
9. a substance used to stimulate immunity to a particular infectious disease or pathogen, typically prepared from an inactivated or weakened form of the causative agent or from its constituents or products.
10. a widespread occurrence of an infectious disease in a community at a particular time.

1. a microorganism, especially a bacterium causing disease or fermentation.
2. a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.
3. an organism that lives in or on an organism of another species (its host) and benefits by deriving nutrients at the other's expense.
4. a widespread occurrence of an infectious disease over a whole country or the world at a particular time.
6. the study of epidemics.
7. an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.