Ticks are responsible for spreading harmful diseases including Lyme disease and tick-borne encephalitis. Understanding tick population dynamics and predicting risk of tick-borne disease insurgence helps to design preventive actions against the disease spread. Using a compartmental model describing the pathogen transmission among ticks and hosts, we study the influence of host-targeted tick control strategies with chemical insecticides on tick population and disease transmission dynamics. Our analysis shows that in areas with rapid-growing population of ticks, host-targeted controls using chemical insecticides may enhance disease persistence and even turn a disease-free area to a disease endemic area. Therefore, the complex dynamics of pathogen spread among ticks and hosts should be carefully examined when designing tick control strategies.

cks虫负责传播包括莱姆病和tick传脑炎在内的有害疾病。了解tick种群动态并预测tick传播疾病暴动的风险有助于设计针对疾病传播的预防措施。使用描述describing和宿主之间病原体传播的区室模型，我们研究了以化学杀虫剂为宿主的tick控制策略对tick种群和疾病传播动态的影响。我们的分析表明，在壁虱种群快速增长的地区，使用化学杀虫剂的针对宿主的控制措施可能会增强疾病的持久性，甚至使无病地区变成疾病流行地区。因此，在设计tick虫控制策略时，应仔细检查病原体在tick和宿主之间传播的复杂动态。