What are the factors in the spread of a disease? , What is population density? , Does the number of international airports in a city play a role in the spread of a pandemic? Why? , What does "infectious" mean? , What is the role of the government in protecting people from a health crisis? , Compare "prevention" with "treatment", which one is more important in public health? Why?.

Unlock 4 Unit 3 Listening 1 Discussion

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