A case of Powassan encephalitis occurred in Manitoba, Canada, after the bite of a black-legged tick. Awareness of this emerging tickborne illness is needed because the number of vector tick species is growing. No specific treatment options exist, and cases with illness and death are high. Prevention is crucial.

中文翻译：

---

加拿大马尼托巴省蜱虫叮咬后波瓦桑病毒脑炎

加拿大马尼托巴省发生一例被黑腿蜱虫叮咬后引发的波瓦桑脑炎病例。由于媒介蜱种类的数量正在增加，因此需要对这种新出现的蜱传疾病进行认识。没有具体的治疗方案，患病和死亡的病例很高。预防至关重要。