What was significant about the 1918 influenza virus? A) It was the first time the virus had originated from birds. B) Soldiers returning from overseas introduced the virus into the United States. C) The

What was significant about the 1918 influenza virus?

A) It was the first time the virus had originated from birds.
B) Soldiers returning from overseas introduced the virus into the United States.
C) The virus spread quickly and killed millions of people worldwide.
D) It led to the development of an influenza vaccination.

Help, which of these are correct?

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What was significant about the 1918 influenza virus? A) It was the first time the virus had originated from birds. B) Soldiers returning from overseas introduced the virus into …

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