Question

pandemic timeline information​

Answer 1

Answer:

In the realm of infectious diseases, a pandemic is the worst case scenario. When an epidemic spreads beyond a country’s borders, that’s when the disease officially becomes a pandemic.

Communicable diseases existed during humankind’s hunter-gatherer days, but the shift to agrarian life 10,000 years ago created communities that made epidemics more possible. Malaria, tuberculosis, leprosy, influenza, smallpox and others first appeared during this period.

Answer 2

Answer:

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Step-by-step explanation:

n the realm of infectious diseases, a pandemic is the worst case scenario. When an epidemic spreads beyond a country’s borders, that’s when the disease officially becomes a pandemic.

Communicable diseases existed during humankind’s hunter-gatherer days, but the shift to agrarian life 10,000 years ago created communities that made epidemics more possible. Malaria, tuberculosis, leprosy, influenza, smallpox and others first appeared during this period.