Uncommon bovine viral diarrhea virus subtype 1e associated with abortions in cattle in southern Brazil

Uncommon bovine viral diarrhea virus subtype 1e associated with abortions in cattle in southern Brazil

We characterized bovine viral diarrhea virus (BVDV)-related abortions in cattle and identified the species and subgenotypes in the state of Santa Catarina, southern Brazil. Our RT-PCR assay was positive for BVDV in 5 fetuses from different farms; however, 3 of the 5 fetuses were also PCR-positive fo...

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Bibliographic Details
Published in:Journal of veterinary diagnostic investigation Vol. 36; no. 1; pp. 115 - 119
Main Authors: Marian, Lucas, Withoeft, Jéssica A., Esser, Maiara, Dal Molin, Stephane R., Hamckmeier, Deise, Baumbach, Letícia F., Canal, Cláudio W., Casagrande, Renata A.
Format: Journal Article
Language:English
Published: Los Angeles, CA SAGE Publications 01-01-2024
Subjects:
Animals
Bovine Virus Diarrhea-Mucosal Disease - epidemiology
Brazil - epidemiology
Brief Reports
Cattle
Cattle Diseases - epidemiology
Diarrhea - veterinary
Diarrhea Virus 1, Bovine Viral - genetics
Diarrhea Virus 2, Bovine Viral - genetics
Diarrhea Viruses, Bovine Viral - genetics
Edema - veterinary
Female
Phylogeny
Pregnancy
Brazil
Pestivirus
phylogeny
cattle
pathology
reproductive loss
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Summary:We characterized bovine viral diarrhea virus (BVDV)-related abortions in cattle and identified the species and subgenotypes in the state of Santa Catarina, southern Brazil. Our RT-PCR assay was positive for BVDV in 5 fetuses from different farms; however, 3 of the 5 fetuses were also PCR-positive for Neospora caninum. In the 5 BVDV-positive fetuses, gross lesions included fetal mummification (1), hepatomegaly (1), subcutaneous edema (1), and perirenal edema (1). Predominant histologic lesions included epicarditis and mild-to-moderate lymphoplasmacytic myocarditis (5), mild multifocal lymphoplasmacytic interlobular pneumonia (4), nephrosis associated with moderate multifocal interstitial nephritis (1), moderate multifocal lymphoplasmacytic necrotic hepatitis (1), and mild multifocal lymphoplasmacytic meningitis (1). The amplification products from the Pestivirus 5′UTR region of 4 of the 5 fetuses had 96.3–100% similarity between fetal strains and reference strains. The samples were distributed into 2 branches of the phylogenetic tree; strains UDESC:01, UDESC:02, and UDESC:05 clustered in the BVDV-1e branch, uncommon in the Americas, and strain UDESC:04 clustered in the BVDV-2b branch. The three 1e strains had 96.9–97.4% similarity.
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ISSN:1040-6387
1943-4936
1943-4936
DOI:10.1177/10406387231209739