PAKISTAN
VETERINARY
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First Detection and Prevalence of Bovine Rhinitis A and B Viruses in Cattle in Türkiye: Risk Assessment and Association with Bovine Respiratory Disease
 
Emel Aksoy 1, Yasin Şenel2 and Ahmet Kürşat Azkur 1,*

1Department of Virology, Faculty of Veterinary Medicine, Kırıkkale University, Kırıkkale-Türkiye; 2Department of Internal Medicine, Faculty of Veterinary Medicine, Kırıkkale University, Kırıkkale-Türkiye

*Corresponding author: azkurkursat@hotmail.com; kursatazkur@kku.edu.tr

Abstract   

Bovine respiratory disease (BRD) represents a multifactorial syndrome causing significant economic losses in cattle worldwide. Among viral pathogens, bovine rhinitis A virus (BRAV) and bovine rhinitis B virus (BRBV) have been implicated in BRD etiology; however, to our knowledge, no data are available for Türkiye. This study aimed to determine the prevalence of BRAV and BRBV in cattle from Kırıkkale and Ankara provinces. Samples were collected from 200 cattle (100 BRD-affected and 100 asymptomatic) and BRAV and BRBV detection was carried out via multiplex real-time RT-PCR from nasal swabs, and hematological parameters were analyzed from blood samples. In addition, data on age, body temperature, respiratory signs, and the presence of ocular and nasal discharge were recorded for all animals. BRAV was detected in 24.5% (49/200), BRBV in 12.5% (25/200), and co-infections in 7% (14/200). Infection rates were significantly higher in BRD-affected animals for both BRAV (40% vs. 9%, OR: 6.7, 95% CI: 3.05–14.90, P<0.0001) and BRBV (19% vs. 6%, OR: 3.7, 95% CI: 1.40–9.64, P=0.0082). BRAV positivity was significantly associated with younger age (1–2 months) and fever (P<0.05), while no significant clinical sign or age-related differences were observed for BRBV. Hematological analysis revealed significant differences in neutrophils, lymphocytes and monocytes among virus-positive animals (P<0.05). This study provides the first evidence of BRAV and BRBV circulation in Türkiye, underscoring their potential involvement in BRD pathogenesis.

To Cite This Article: Aksoy E, Şenel Y and Azkur AK 2025. First detection and prevalence of bovine rhinitis A and B viruses in cattle in Türkiye: risk assessment and association with bovine respiratory disease. Pak Vet J. http://dx.doi.org/10.29261/pakvetj/2025.256
 
 
   
 

ISSN 0253-8318 (Print)
ISSN 2074-7764 (Online)



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