Avihepadnavirus diversity in parrots is comparable to that found amongst all other avian species

Tomasz Piasecki, Gordon W. Harkins, Klaudia Chrzastek, Laurel Julian, Darren P. Martin, Arvind Varsani

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Avihepadnaviruses have previously been isolated from various species of duck, goose, stork, heron and crane. Recently the first parrot avihepadnavirus was isolated from a Ring-necked Parakeet in Poland. In this study, 41 psittacine liver samples archived in Poland over the last nine years were tested for presence of Parrot hepatitis B virus (PHBV). We cloned and sequenced PHBV isolates from 18 birds including a Crimson Rosella, an African grey parrot and sixteen Ring-necked Parakeets. PHBV isolates display a degree of diversity (>78% genome wide pairwise identity) that is comparable to that found amongst all other avihepadnaviruses (>79% genome wide pairwise identity). The PHBV viruses can be subdivided into seven genetically distinct groups (tentatively named A-G) of which the two isolated of PHBV-G are the most divergent sharing ~79% genome wide pairwise identity with all their PHBVs. All PHBV isolates display classical avihepadnavirus genome architecture.

Original languageEnglish (US)
Pages (from-to)98-105
Number of pages8
Issue number2
StatePublished - Apr 10 2013
Externally publishedYes


  • Avihepadnaviruses
  • Hepatitis B virus
  • Parrot hepatitis B virus
  • Psittacines

ASJC Scopus subject areas

  • Virology


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