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[Persistent BVD virus infections in a cattle breeding facility--a case report]
DTW. Deutsche Tierarztliche Wochenschrift
|May 1, 1992
Summary
Persistent BVD virus infection in calves can lead to significant herd damage. Identifying these virus carriers is crucial for preventing economic losses in cattle.
Area of Science:
- Veterinary Virology
- Bovine Health
- Epidemiology
Context:
- Bovine viral diarrhoea (BVD) virus poses a significant threat to dairy herds.
- Unidentified persistently infected animals can act as reservoirs for BVDV.
- Early detection and management are vital for herd health.
Purpose:
- To investigate the prevalence and impact of BVD virus in a dairy herd.
- To reconstruct the BVDV introduction and spread within the herd.
- To discuss strategies for identifying and controlling BVDV.
Summary:
- Comprehensive monitoring identified 26 persistently infected calves out of 83.
- Most infected calves were asymptomatic, highlighting the challenge of detection.
- Viral isolates were antigenically homogenous, aiding in event reconstruction.
Impact:
- Demonstrates the substantial economic damage caused by unidentified BVDV carriers.
- Underscores the importance of targeted surveillance for virus-shedding animals.
- Provides insights into effective BVDV control strategies for cattle herds.