prediffusion

例句：

1. 1. Thedisease has a prediffusion ofsymptoms in the elderly population.
   这种疾病在老年人中具有先发症。
2. 2. The studyfound that genetic predisposition played a significant role inthe development of the disease.
   研究发现遗传因素在疾病发展过程中起着重要作用。
3. 3. The patient exhibitedearly prediffusion of symptoms,prompting immediate medical intervention.
   患者出现了早期先发症，需要立即进行医疗干预。