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What are pandemic diseases?
a. diseases that spread from person to person through contaminated water sources
b. diseases that are transmitted by parasites, such as mosquitoes
c. diseases that are specific to a particular place, climate, or region
d. diseases that spread over a large area and affect large numbers of people

Respuesta :

d. diseases that spread over a large area and affect large numbers of people
The answer is D. A pandemic disease is the world wide spread of a new disease. For example, an influenza pandemic occurs when a new influenza virus emerges and spreads around the world, and most people do not have immunity. Viruses that have cause past pandemics typically originated from animal influenza viruses. Hope this helped :)!

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