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improved transportation to and from previously inaccessible areas the growing international trade in animals, some possibly infected with viruses hitching rides with produce and materials transported out of an infected areas

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Explain how human actions have contributes to the increase of emergence viral diseases?

For example in a tropical forest where the emerging Ebola virus has been known to exist,when these forests are cleared,humans may be exposed to virus_infected animal these viruses can infect humans may spread with deadly consequences


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Pestilence, often referring to widespread disease outbreaks, is primarily caused by pathogens such as bacteria, viruses, and parasites. Environmental factors, including poor sanitation, overcrowding, and climate changes, can exacerbate the spread of these diseases. Historical pestilences, like the Black Death, were often linked to specific vectors, such as fleas on rats, and social conditions that facilitated transmission. Ultimately, a combination of biological and environmental factors contributes to the emergence and spread of pestilence.


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