title: Hepatitis delta virus infection in Pekin ducks chronically infected by the duck hepatitis B virus.
mesh_terms: D000818:Animals; D002353:Carrier State / Q000382:microbiology; D004195:Disease Models, Animal; D004372:Ducks; D004769:Enterovirus Infections / Q000150:complications* / Q000382:microbiology; D006515:Hepatitis B virus / Q000502:physiology; D003699:Hepatitis D / Q000150:complications* / Q000382:microbiology; D003698:Hepatitis Delta Virus / Q000502:physiology*; D014779:Virus Replication