Revelations From a Frozen Virus

Blood samples from the 1950s help rewrite the history of hepatitis C.

HL1
Even a scrap of old DNA can yield vital clues about the history of a disease. So when Oliver Pybus, an evolutionary biologist at Oxford University, heard about the short sequence of viral genome extracted from blood kept frozen for more than 60 years, he had to have it. With that genetic sliver, Pybus thought he could add a vital chapter to a story he has long sought to complete: the history of the hepatitis C virus. Scientists have amassed a wealth of knowledge about hepatitis C since its disco...
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