Development of a risk-based zoning strategy for African swine fever control in South Korea: Integrating spatial analysis and biosecurity assessment

초록

African swine fever (ASF) remains a significant threat to the swine industry globally and in Korean, necessitating improved management and biosecurity measures. This study evaluates the effectiveness of designated control zones in Korea, integrating geographical analytics and biosecurity assessments. Our findings revealed that the average distance between ASF-infected wild boar carcasses and pig farms was around 2 km, indicating the importance of wildlife in disease transmission to neighboring farms. Farm-level biosecurity investigations revealed that around 60% of pig farms had medium to high biosecurity scores; however, geographical differences highlighted places where inadequate biosecurity was substantially associated with increased ASF risk. The paper aims to provide comprehensive strategies, geographical factors, and the distribution of wild boar populations. This paper proposes a shift from blanket quarantine measures to a risk-based approach, prioritizing interventions in areas and on farms facing the highest transmission risks. Drawing upon lessons learned from ASF outbreaks in Estonia, investigating whether farm biosecurity management and ASF risk factor management have a significant impact on ASF control, this paper outlines a comprehensive strategy encompassing enhanced biosecurity, targeted surveillance, and a dynamic to effectively manage ASF and safeguard the future of Korea’s pig industry.

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