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| Back to article Figure. Frequency, by generation of disease, of the number of persons infected with smallpox by an infectious person. Average refers to the mean number of persons infected. Not all sources reported five generations of disease. In some instances, the reported outbreak was contained or died out before the fifth generation (23-26,29,30). |
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This page last reviewed December 15, 2001 Emerging
Infectious Diseases Journal
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