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eberk12 eberk12
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Posts: 283
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6 years ago
The Black Plague has killed millions of humans over the course of history, yet we do not vaccinate against this disease. Why is this and how is the disease controlled in modern human populations?
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jenkinsleslie19jenkinsleslie19
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Posts: 201
6 years ago
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wrote...
3 years ago
Thanks a lot!
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