Montana State University, Bozeman, Montana 59717-3120, USA.
Emerg Infect Dis. 2010 Mar;16(3):480-6. doi: 10.3201/eid1603.090667.
In 2005, an outbreak of West Nile virus (WNV) disease occurred in Sacramento County, California; 163 human cases were reported. In response to WNV surveillance indicating increased WNV activity, the Sacramento-Yolo Mosquito and Vector Control District conducted an emergency aerial spray. We determined the economic impact of the outbreak, including the vector control event and the medical cost to treat WNV disease. WNV disease in Sacramento County cost approximately $2.28 million for medical treatment and patients' productivity loss for both West Nile fever and West Nile neuroinvasive disease. Vector control cost approximately $701,790, including spray procedures and overtime hours. The total economic impact of WNV was $2.98 million. A cost-benefit analysis indicated that only 15 cases of West Nile neuroinvasive disease would need to be prevented to make the emergency spray cost-effective.
2005 年，加利福尼亚州萨克拉门托县爆发西尼罗河病毒（WNV）疾病；报告了 163 例人类病例。针对西尼罗河病毒监测表明活动增加，萨克拉门托-约洛蚊子和蚊子控制区进行了紧急空中喷雾。我们确定了爆发的经济影响，包括蚊虫控制事件和治疗西尼罗河病毒疾病的医疗费用。萨克拉门托县的西尼罗河病毒病的治疗费用约为 228 万美元，包括西尼罗河热和西尼罗河神经侵袭性疾病患者的生产力损失。蚊虫控制费用约为 701790 美元，包括喷雾程序和加班时间。WNV 的总经济影响为 298 万美元。成本效益分析表明，只需预防 15 例西尼罗河神经侵袭性疾病，就可以使紧急喷雾具有成本效益。
