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Question by Ummmm…:): the spread of pandemics?
What made Pandemics spread so fast ? Like the black blague, yellow fever, swine flu, etc. was it just hygiene problems? Please help. Thanks:)

Best answer:

Answer by essentiallysolo
poor hygiene does play a role, the ability of people to travel rapidly to any point on the globe is another. People can carry the virus without being sick for a day or two before they know they have it, and thus unwittingly spread it around to everyone they come in contact with.

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