Guo X, Claassen G D H, Oude Lansink A G J M, Loeffen W, Saatkamp H W
Business Economics Group, Department of Social Sciences, Wageningen University, Wageningen, The Netherlands.
Operations Research and Logistics Group, Department of Social Sciences, Wageningen University, Wageningen, The Netherlands.
Transbound Emerg Dis. 2016 Jun;63(3):296-313. doi: 10.1111/tbed.12274. Epub 2014 Sep 12.
Classical swine fever (CSF) is a highly contagious pig disease that causes economic losses and impaired animal welfare. Improving the surveillance system for CSF can help to ensure early detection of the virus, thereby providing a better initial situation for controlling the disease. Economic analysis is required to compare the benefits of improved surveillance with the costs of implementing a more intensive system. This study presents a comprehensive economic analysis of CSF surveillance in the Netherlands, taking into account the specialized structure of Dutch pig production, differences in virulence of CSF strains and a complete list of possible surveillance activities. The starting point of the analysis is the current Dutch surveillance system (i.e. the default surveillance-setup scenario), including the surveillance activities 'daily clinical observation by the farmer', 'veterinarian inspection after a call', 'routine veterinarian inspection', 'pathology in AHS', 'PCR on tonsil in AHS', 'PCR on grouped animals in CVI' and 'confirmatory PCR by NVWA'. Alternative surveillance-setup scenarios were proposed by adding 'routine serology in slaughterhouses', 'routine serology on sow farms' and 'PCR on rendered animals'. The costs and benefits for applying the alternative surveillance-setup scenarios were evaluated by comparing the annual mitigated economic losses because of intensified CSF surveillance with the annual additional surveillance costs. The results of the cost-effectiveness analysis show that the alternative surveillance-setup scenarios with 'PCR on rendered animals' are effective for the moderately virulent CSF strain, whereas the scenarios with 'routine serology in slaughterhouses' or 'routine serology on sow farms' are effective for the low virulent strain. Moreover, the current CSF surveillance system in the Netherlands is cost-effective for both moderately virulent and low virulent CSF strains. The results of the cost-benefit analysis for the moderately virulent CSF strain indicate that the current surveillance system in the Netherlands is adequate. From an economic perspective, there is little to be gained from intensifying surveillance.
经典猪瘟（CSF）是一种高度传染性的猪病，会造成经济损失并损害动物福利。改进CSF监测系统有助于确保早期发现病毒，从而为控制该疾病提供更好的初始条件。需要进行经济分析，以比较改进监测的收益与实施更密集系统的成本。本研究对荷兰CSF监测进行了全面的经济分析，考虑了荷兰养猪生产的专业结构、CSF毒株毒力的差异以及所有可能的监测活动清单。分析的起点是当前荷兰的监测系统（即默认监测设置方案），包括“农户日常临床观察”、“接到通知后兽医检查”、“常规兽医检查”、“动物卫生服务局病理学检查”、“动物卫生服务局扁桃体PCR检测”、“中央兽医研究所分组动物PCR检测”以及“荷兰食品和消费品安全局确证PCR检测”等监测活动。通过增加“屠宰场常规血清学检测”、“母猪场常规血清学检测”和“加工动物PCR检测”提出了替代监测设置方案。通过比较因加强CSF监测而每年减轻的经济损失与每年额外的监测成本，评估了应用替代监测设置方案的成本和收益。成本效益分析结果表明，采用“加工动物PCR检测”的替代监测设置方案对中等毒力的CSF毒株有效，而采用“屠宰场常规血清学检测”或“母猪场常规血清学检测”的方案对低毒力毒株有效。此外，荷兰目前的CSF监测系统对中等毒力和低毒力的CSF毒株均具有成本效益。对中等毒力CSF毒株的成本效益分析结果表明，荷兰目前的监测系统是足够的。从经济角度来看，加强监测几乎没有什么收益。
