Ancient “Fossil” Virus Shows Infection to Be Millions of Years Old

viral fossil genome in birds hepetitis B

INFECTIOUS INSERTIONS: Today’s songbirds are harboring traces of ancient viral strains in their genomes, giving researchers a new understanding of the disease’s age and evolutionary history. Image: ISTOCKPHOTO/GLOBAL IP

Genetic traces of an ancient hepatitis B-like virus confounds common knowledge about viral evolution

 September 29, 2010

via scientificamerican.com

 

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