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With that innocent act, Viccars unleashed upon his community the most feared disease of the age. The package had come from London, where bubonic plague had been raging for months, and the cloth harbored fleas that carried the disease…By the end of September, five more people in the neighborhood had died, and in the first there days of October there were four more deaths. At the end of the month the toll had reached 23. The plague had come to the remote village of Eyam.

By knowing how genes pass on instructions and why the instructions sometimes become garbled, eventually it may be possible to introduce new genetic information into cells and correct defects…One day, scientists believe, genetic, genetic engineering may provide a cure for gene-influenced cancers and other diseases as well.