Many factors complicate efforts to calculate a case fatality ratio while an outbreak is still evolving.

疾病仍处于暴发期时很多因素使计算病例病死率的努力复杂化。

youdao

As of 1 February, WHO has received reports of 95 cases of dengue infection and 11 deaths (case fatality ratio, 11.6%).

截止到2月1日，世界卫生组织已收到95例登革热感染和11例死亡(病死率为11.6%)的报告。

youdao

As of 15 February, WHO has received reports of 215 hospitalized cases of dengue infection and 20 deaths (case fatality ratio, 9.3%).

截止到2月15日，世界卫生组织已收到215例住院治疗的登革热感染病例和20例死亡(病死率为9.3%)的报告。

youdao