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First detection of koi herpesvirus and carp oedema virus in Iraq associated with a mass mortality in common carp ( Cyprinus carpio )
Author(s) -
Toffan Anna,
Marsella Andrea,
Abbadi Miriam,
Abass Salah,
AlAdhadh Basem,
Wood Gareth,
Stone David Michael
Publication year - 2020
Publication title -
transboundary and emerging diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.392
H-Index - 63
eISSN - 1865-1682
pISSN - 1865-1674
DOI - 10.1111/tbed.13428
Subject(s) - cyprinus , carp , common carp , gill , veterinary medicine , biology , lethargy , fishery , aquatic animal , fish <actinopterygii> , medicine
At the end of October 2018, a mass fish mortality occurred in Iraq, involving thousands of tons of cultured and wild common carp ( Cyprinus carpio ) along Euphrates and Tigris rivers. Fish were found dead or moribund along rivers coasts, showing lethargy, dyspnoea and flared gills. At necropsy, discoloration patches were noticed on the gills. Wet preparations showed rare metacercariae and Dactylogyrus spp. Samples were subjected to bacteriological tests and virological investigation through real‐time PCR and nested PCR. Both were positive for koi herpesvirus (KHV) and carp oedema virus. Results obtained were confirmed by the OIE reference laboratory of KHV disease (KHVD) at Cefas (UK) and by sequence analysis. This is the first report on the detection of both viruses in Iraq.