潜育期(incubation period)：从寄生关系的建立到症状的开始出现称为潜育期.发病期 (symptom appearance):植物外表出现病害症状的时期称为发病期.
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The time and degree of symptom appearance are closely related to the location of hydatid cysts and anatomic characteristics of the respective organs;
症状出现早晚及程度与包虫囊肿发生的部位及该器官的解剖学特点有关；
Comparing with the symptom appearance rate of central nerve system, it was found that when the population was grouped according to room temperature, the changing trend showed in opposite direction.
与中枢神经系统症状出现率的变化趋势比较，发现以室温分组时，与神经行为功能表现的变化趋势相反；
The amount of hemoptysis, time of its appearance and symptom relapse were closely related to the etiology.
咯血的量、出现的时间及反复性与病因有一定关系。
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