But the new H1N1 flu has been affecting a younger age group than seasonal flu epidemics.

VOA: special.2009.08.05

We have seen the rise of a whole set of threats that we're not prepared to deal with, from climate change to global epidemics.

我们发现危机重重,我们还没有应对的准备，从气候变化到全球范围内的流行病。

普林斯顿公开课 - 国际座谈会课程节选

There are global epidemics.There is climate change.

有全球范围内的流行病，有气候变化问题。

普林斯顿公开课 - 国际座谈会课程节选

But the H1N1 flu has been affecting a younger age group than seasonal flu epidemics.

VOA: special.2009.08.18

Yogan Pillay is acting director of the National Department of Health that oversees the HIV/AIDS and TB epidemics in South Africa.

VOA: standard.2010.05.29