Unit 23 Multiple Choice — Epidemics, Viruses, and Pandemics

INSTRUCTIONS:

INSTRUCTIONS: Select the best definition for the term below and click Submit.

noun (thing)

Question 1 of 18

Contagion

Not visible with naked eye.

An organism on which a parasite derives benefit such as food.

The spread of disease from one person to another by close contact.

0% correct

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