they can be devastating.

其病情会非常严重
A fifth question has to do with,

第五个主要问题
what's the profile of the victims of the disease?

与患病人群的年龄构成有关
Is this a disease that's an affliction of the young and the elderly;

该疾病是否主要感染老年人及儿童
that is, experienced as a more normal course of a disease,

换句话说这种疾病是否像大众所预期
in accord with society's expectations and past experience?

或以往所经历的那样符合一般发展规律
Or does it instead strike down

还是说疾病主要感染
particularly those who are in the prime of life,

青壮年人群
thereby no longer seeming natural

以不同于一般发展规律的
but as something extraordinary in the experience of the population?

独特形式感染目标人群
And it also means that the disease

在这种情形下
is likely to maximize its economic and financial impact,

疾病可能对社会产生极大的经济影响