Pestiviruses in wild animals.

Area of Science:

• Veterinary Virology
• Wildlife Disease Ecology

Background:

• Pestiviruses exhibit broad host specificity, affecting domestic and wild animals.
• Classical swine fever virus (CSFV) and bovine viral diarrhea virus (BVDV) are significant concerns in livestock and wildlife populations.
• Previous BVDV isolations require careful consideration due to potential contamination issues.

Purpose of the Study:

• To investigate the diversity and circulation of pestiviruses in wildlife populations.
• To assess the potential for pestivirus transmission between domestic and wild animals.
• To identify challenges and future research directions in pestivirus epidemiology.

Main Methods:

• Review of existing literature on pestivirus identification and genetic typing in wild animals.
• Analysis of reported pestivirus species and genotypes found in wildlife.
• Discussion of epidemiological data and technical challenges in pestivirus research.

Main Results:

• Three pestivirus species (CSFV, BVDV-1, giraffe pestivirus) and three genotypes (BDV-2, BDV-4, pronghorn) have been identified in wildlife.
• Bovine viral diarrhea virus (BVDV)-1 is prevalent among early pestivirus isolates from wild species.
• Antibodies specific to BVDV have been detected in both captive and free-living animals.

Conclusions:

• Pestiviruses are actively circulating in diverse wildlife populations, posing a potential risk to domestic animal health.
• Effective eradication programs for diseases like CSFV require consideration of wildlife reservoirs.
• Further research is needed to address epidemiological and technical challenges in understanding pestivirus dynamics in wildlife.