Key result
Turkey astrovirus 2 was detected in 13.4% of turkeys with Poult Enteritis Mortality Syndrome and 5% of healthy turkeys, with no statistically significant difference between the groups, while coronavirus and haemorrhagic enteritis virus were not detected.
Cross-Sectional (n=270)
Absolute Event Rate: 13.4% vs 5%
p-value: p=>0.05
TAstV-2 is present in turkey flocks with poult enteritis mortality syndrome in Turkey, whereas TCoV and HEV were not detected.
TAstV-2 detection does not distinguish PEMS cases from controls; leaves open its etiologic role and supports expanded pathogen surveillance in turkeys.
This study was carried out to investigate the presence of turkey astrovirus 2 (TAstV-2), turkey coronavirus (TCoV) and haemorrhagic enteritis virus (HEV) by molecular methods in cloacal swabs collected from both clinically healthy turkey flocks and those associated with poult enteritis mortality syndrome (PEMS) in Turkey. In the reverse transcriptase polymerase chain reaction (RT-PCR) examination of 230 cloacal swabs collected from 23 turkey flocks associated with PEMS, TAstV-2 was detected in 13.4% (31/230) of the animals and in 43.4% (10/23) of the flocks. In addition, this virus was found in two turkeys originating from one of the four clinically healthy flocks. On the other hand, neither TCoV nor HEV were detected in any of the turkey samples examined in this study. In the partial sequence analysis of four randomly selected DNA samples, 96% nucleotide identity was observed between our strains and reference Turkey astrovirus isolated from turkeys in Italy between 2000 and 2004 (sequence accession number DQ381378.1).
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Öngör et al. (2015) conducted a cross-sectional in Poult Enteritis Mortality Syndrome (PEMS) (n=270). Poult Enteritis Mortality Syndrome (PEMS) vs. Clinically healthy turkey flocks was evaluated on Detection of turkey astrovirus 2 (TAstV-2) (p=>0.05). Turkey astrovirus 2 was detected in 13.4% of turkeys with Poult Enteritis Mortality Syndrome and 5% of healthy turkeys, with no statistically significant difference between the groups, while coronavirus and haemorrhagic enteritis virus were not detected.
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