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Smallpox is an epidemic disease . …

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Smallpox is an epidemic disease . Justify the statement with appropriate example.

Posted by Sneha Kumari 4 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 4 years, 2 months ago

Cholera, bubonic plague, smallpox, and influenza are some of the most brutal killers in human history. And outbreaks of these diseases across international borders, are properly defined as pandemic, especially smallpox, which throughout history, has killed between 300-500 million people in its 12,000 year existence. Researchers have solved a fundamental mystery about smallpox that has puzzled scientists long after the natural disease was eradicated by vaccination: they know how it kills us. Scientists can now describe how the virus cripples immune systems by attacking molecules made by our bodies to block viral replication.

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