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It killed an estimated 25–60% of Europeans. Some estimates are as high as 2/3 of the population.
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It was decontaminated in the late 20th centuary.
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HIV stands for 'human immunodeficiency virus'.
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Measles is one of the most contagious viral diseases. It is caused by paramyxovirus and is the most unpleasant and the most dangerous of the children's diseases that result in a rash
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