Uncommon bovine viral diarrhea virus subtype 1e associated with abortions in cattle in southern Brazil.
J Vet Diagn Invest
; 36(1): 115-119, 2024 Jan.
Article
in En
| MEDLINE
| ID: mdl-37908042
ABSTRACT
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 UDESC01, UDESC02, and UDESC05 clustered in the BVDV-1e branch, uncommon in the Americas, and strain UDESC04 clustered in the BVDV-2b branch. The three 1e strains had 96.9-97.4% similarity.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Bovine Virus Diarrhea-Mucosal Disease
/
Cattle Diseases
/
Diarrhea Viruses, Bovine Viral
/
Diarrhea Virus 1, Bovine Viral
/
Diarrhea Virus 2, Bovine Viral
Limits:
Animals
/
Pregnancy
Country/Region as subject:
America do sul
/
Brasil
Language:
En
Journal:
J Vet Diagn Invest
Journal subject:
MEDICINA VETERINARIA
Year:
2024
Document type:
Article
Affiliation country:
Brasil