Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
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Chapter 17, Problem 3TYU

A human pandemic is

  1. A.    a viral disease that infects all humans.
  2. B.     a flu that kills more than 1 million people.
  3. C.     an epidemic that extends around the world.
  4. D.    a virus that increases In mortality rate as it spreads.
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In the case of the Ebola outbreak in the Democratic Republic of the Congo (then called Zaire) in 1976, how did the virus first transmit to humans?  A. A mosquito bit a teacher  B. Scientists are still unsure  C. A teacher ate a wild antelope  D. A teacher ate a wild bat
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What Is A Virus ? ; Author: Peekaboo Kidz;https://www.youtube.com/watch?v=YS7vsBgWszI;License: Standard YouTube License, CC-BY