Hydropericardium syndrome outbreak caused by fowl adenovirus serotype 4 in China in 2015

Yu Juan Niu, Wei Sun, Gui Hua Zhang, Ya Jin Qu, Peng Fei Wang, Hong Lei Sun, Leyi Wang, Yi Hong Xiao, Si Dang Liu

Research output: Contribution to journalArticlepeer-review


There have been many outbreaks of hydropericardium syndrome (HPS), which is characterized by pericardial effusion and hepatitis, in Chinese chicken farms since June 2015. HPS was mainly found in miscellaneous meat-type chickens, Ma chickens, layer chicks and Three-yellow chickens, while it was occasionally found in white broilers. To determine the specific causative pathogen and pathogenicity of HPS in chickens, we collected 25 suspected cases and performed clinical pathology and aetiology analyses. The results showed that the 25 cases exhibited multifocal hepatitis with intra-nuclear inclusion bodies and 70 nm-latticed viral particles in the cell nuclei. All samples were positive for fowl adenovirus (FAdV), and sequencing results showed that the hexon gene shared the highest nucleotide similarities with the hexon gene of group 1 serotype 4 (FAdV-4). FAdV-4 was highly pathogenic to embryos and specific pathogen-free chickens, causing 100 and 70 % mortality rates, respectively. Thus, FAdV-4 is associated with HPS outbreaks in China.

Original languageEnglish (US)
Article number000567
Pages (from-to)2684-2690
Number of pages7
JournalJournal of General Virology
Issue number10
StatePublished - Oct 2016


  • Fowl adenovirus serotype 4
  • Hepatitis
  • Hydropericardium syndrome
  • Pericardial effusion

ASJC Scopus subject areas

  • Virology


Dive into the research topics of 'Hydropericardium syndrome outbreak caused by fowl adenovirus serotype 4 in China in 2015'. Together they form a unique fingerprint.

Cite this