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Author Question: The majority of decline in measles mortality in the United States after 1900 was due to the ... (Read 74 times)

Mollykgkg

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on: Jul 2, 2018
The majority of decline in measles mortality in the United States after 1900 was due to the development of an effective vaccine.
 
  Indicate whether this statement is true or false.

Question 2

Smallpox was the first disease for which an effective vaccine was developed.
 
  Indicate whether this statement is true or false.


Sophiapenny

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  • Posts: 339
Reply #1 on: Jul 2, 2018
Answer to Question 1

False

Answer to Question 2

True


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