Occurrence of malformed calves in April–May 2021 indicates an unnoticed 2020 emergence of Schmallenberg virus in Denmark
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Occurrence of malformed calves in April–May 2021 indicates an unnoticed 2020 emergence of Schmallenberg virus in Denmark. / Agerholm, Jørgen Steen; Wernike, Kerstin.
I: Transboundary and Emerging Diseases, Bind 69, Nr. 5, 2022, s. 3128-3132.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Occurrence of malformed calves in April–May 2021 indicates an unnoticed 2020 emergence of Schmallenberg virus in Denmark
AU - Agerholm, Jørgen Steen
AU - Wernike, Kerstin
N1 - Publisher Copyright: © 2021 Wiley-VCH GmbH
PY - 2022
Y1 - 2022
N2 - During the European emergence of Schmallenberg virus (SBV) in 2011, examination of Culicoides spp. showed that SBV-infected midges were present across Denmark. However, SBV-associated malformations in ruminant species have not been reported in Denmark. In April 2021, seven calves with severe congenital generalized arthrogryposis and reduced body weight originating from a narrow region of the Jutlandic peninsula were submitted for examination. Analysis of fetal brain tissue for SBV viral RNA and pleural effusion for fetal anti-SBV antibodies identified SBV as the cause of the congenital syndrome. Backwards calculation from the calving dates indicated the occurrence of an unnoticed emergence of SBV in Denmark from early August 2020 and during the late summer and autumn. As SBV-associated malformations may lead to severe dystocia requiring fetotomy or caesarean section, veterinarians performing obstetric intervention are first-line personnel in recognition of SBV emergence in domestic ruminants.
AB - During the European emergence of Schmallenberg virus (SBV) in 2011, examination of Culicoides spp. showed that SBV-infected midges were present across Denmark. However, SBV-associated malformations in ruminant species have not been reported in Denmark. In April 2021, seven calves with severe congenital generalized arthrogryposis and reduced body weight originating from a narrow region of the Jutlandic peninsula were submitted for examination. Analysis of fetal brain tissue for SBV viral RNA and pleural effusion for fetal anti-SBV antibodies identified SBV as the cause of the congenital syndrome. Backwards calculation from the calving dates indicated the occurrence of an unnoticed emergence of SBV in Denmark from early August 2020 and during the late summer and autumn. As SBV-associated malformations may lead to severe dystocia requiring fetotomy or caesarean section, veterinarians performing obstetric intervention are first-line personnel in recognition of SBV emergence in domestic ruminants.
KW - fetal infection
KW - malformation
KW - Peribunyavirus
KW - ruminants
KW - Schmallenberg virus
U2 - 10.1111/tbed.14405
DO - 10.1111/tbed.14405
M3 - Journal article
C2 - 34850578
AN - SCOPUS:85120825809
VL - 69
SP - 3128
EP - 3132
JO - Transboundary and Emerging Diseases
JF - Transboundary and Emerging Diseases
SN - 1865-1674
IS - 5
ER -
ID: 287114646