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Unconventional transmission mode of the delta virus

The origin of hepatitis D virus (HDV) is currently unknown. HDV is described as an infectious agent that depends on hepatitis B virus (HBV) for envelopment and transmission of its ribonucleoprotein (RNP); yet, as shown in this study, HBV-unrelated viruses, including hepacivirus and flaviviruses, are also able to propagate HDV in vitro and in humanized mice.
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May 08, 2019