Pang Genevieve C, Hou Amy T, Tamashiro Ryan, Mills Kristin M, Pang Lorrin W
Hawaii State Department of Health, Wailuku, HI 96793, USA.
Pathogens. 2023 Jun 19;12(6):847. doi: 10.3390/pathogens12060847.
Angiostrongyliasis (Rat Lungworm disease) is an emerging parasitic disease caused by the ingestion of gastropods infected with the neurotropic nematode . The reduction of crop infestation with infected slug carriers may vary widely by protection method. We explored the application of barriers with valve mechanisms, whereby selective directional forces caused a greater number of slugs to exit than enter the protected plot, leading to decreased slug population densities at a steady state. Using field data, we constructed predictive models to estimate slug population densities at a steady state in protected plots with (1) no valve effect, (2) a valve effect, (3) no valve effect with a single breach of the barrier, (4) a valve effect with a single breach of the barrier, (5) a valve effect with a constant breach of the barrier, and (6) a repelling effect. For all scenarios, plots protected using a barrier with a valve effect had consistently lower slug densities at a steady state. Our findings support the use of barriers with valve mechanisms under different conditions, and potentially in combination with other interventions to reduce the contamination of crops by slug carriers of . Improving barriers extends beyond disease mitigation to economic and cultural impacts on the local farmer and consumer communities.
管圆线虫病（鼠肺线虫病）是一种新出现的寄生虫病，由摄入感染嗜神经线虫的腹足纲动物引起。通过保护方法，受感染蛞蝓携带者对作物的侵害减少程度可能有很大差异。我们探索了带有阀门机制的屏障的应用，即选择性定向力使更多蛞蝓离开而非进入受保护地块，从而导致稳态下蛞蝓种群密度降低。利用实地数据，我们构建了预测模型，以估计在以下受保护地块稳态下的蛞蝓种群密度：（1）无阀门效应；（2）有阀门效应；（3）屏障单次破损时无阀门效应；（4）屏障单次破损时有阀门效应；（5）屏障持续破损时有阀门效应；（6）有排斥效应。对于所有情况，使用带有阀门效应的屏障保护的地块在稳态下蛞蝓密度始终较低。我们的研究结果支持在不同条件下使用带有阀门机制的屏障，并可能与其他干预措施相结合，以减少感染的蛞蝓携带者对作物的污染。改进屏障不仅有助于减轻疾病，还会对当地农民和消费者社区产生经济和文化影响。
