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
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