Coronavirus associated with an enteric syndrome on a quail farm

An enteric syndrome was observed in quail (Coturnix coturnix) semi-intensively reared for restocking in Apulia (southern Italy). The birds showed depression, severe diarrhoea, dehydration and reduced growth. Mortality occurred particularly in young birds. At necropsy the prominent lesion was enterit...

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Bibliographic Details
Published in:Avian pathology 2007-06, Vol.36 (3), p.251-258
Main Authors: Circella, Elena, Camarda, Antonio, Martella, Vito, Bruni, Giordano, Lavazza, Antonio, Buonavoglia, Canio
Format: Article
Language:English
Subjects:
Agriculture
Amino Acid Sequence
Amino acids
Animal diseases
Animals
Birds
Coronavirus
Coronavirus - classification
Coronavirus - genetics
Coronavirus - isolation & purification
Coronavirus Infections - epidemiology
Coronavirus Infections - veterinary
Coronavirus Infections - virology
Coturnix
Coturnix coturnix
COVID-19
Dehydration
Enteritis - pathology
Enteritis - veterinary
Farms
Infectious bronchitis virus
Membrane Glycoproteins - genetics
Molecular Sequence Data
Ornithology
Phylogeny
Poultry Diseases - virology
Quail - virology
Spike Glycoprotein, Coronavirus
Syndrome
Turkey coronavirus
Viral Envelope Proteins - genetics
Viruses
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Summary:An enteric syndrome was observed in quail (Coturnix coturnix) semi-intensively reared for restocking in Apulia (southern Italy). The birds showed depression, severe diarrhoea, dehydration and reduced growth. Mortality occurred particularly in young birds. At necropsy the prominent lesion was enteritis. A coronavirus was detected by electron microscopy and reverse transcriptase-polymerase chain reaction in the faeces and in the intestinal content of the dead quails. The virus could not be cultivated in chicken embryos. By sequence analyses of a fragment (409 nucleotides) of region 1b of the polymerase gene, the quail coronavirus displayed ≤93% nucleotide identity to avian coronaviruses (group 3 coronaviruses)-whereas by analysis of the S1 portion of the spike protein-encoding gene, the quail coronavirus displayed 16% to 18% amino acid identity with infectious bronchitis virus, and 79% to 81% identity with turkey coronavirus. Altogether, the findings suggest the existence of a novel coronavirus genetically related to turkey coronavirus.
ISSN:0307-9457
1465-3338
DOI:10.1080/03079450701344738