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The resource that helps a reader gain more understanding of the excerpt is how to control the spread of infectious diseases.
What is the When Birds Get Flu and Cows Go Mad! How Safe Are We?
It is a book written by John Di Consiglio.
This book contains interviews with real scientists, about forensic science, and science experiments and tools.
It's about the When Birds Get Flu, which occurs in animals but spread to humans.
The correct option is D, how to control the spread of infectious disease.
Learn more about When Birds Get Flu
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