Chickenpox has largely disappeared from the public’s memory thanks to a highly effective vaccine. But the virus’s clever life cycle allows it to reappear in later adulthood in the form of shingles.
Articles on Viral DNA
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The smallpox virus appears to have been with humanity for millennia before a global vaccination drive wiped it out. Current genome research suggests how smallpox spread and where it came from.
Massive online DNA databases can be used as a resource to discover viruses – even if the data had not been explicitly collected for that purpose.
New genetic technologies are letting us look at flu evolution right where it starts: within individual people, while they’re sick.



