Objective: To investigate the constituent of flea species, the dominant fleas and their spatial distribution patterns in the natural epidemic focus of wild-rat type of plague in Yunnan province.

目的：调查研究云南省野鼠型自然疫源地蚤类组成、优势蚤种及其空间分布格局。

youdao

Experts credit the good news in the report at least in part to prevention programs, not just the natural progress of the epidemic.

专家把报告中的这一好消息至少一部分归功于预防计划，而不仅仅是这一疾病的自然改善。

youdao

Deborah Cohen is a senior natural scientist at the Rand Corp. and the author of the forthcoming book "a Big Fat Crisis: the Hidden Forces Behind the Obesity Epidemic and How We Can End it."

黛博拉•科恩是美国兰德公司一位高级自然科学家，她所著书籍《肥胖危机：肥胖背后隐藏的原因及如何摆脱肥胖》即将出版问世。

youdao

Experts credit the good news in the report at least in part to prevention programs, not just the natural progress of the epidemic.

VOA: special.2009.12.02

The information can be used not just to analyze how a financial disaster is happening in real time, but also other natural disasters or a flu epidemic.

FORBES: Can The U.N. Use Big Data To Respond To Global Disasters?

Both the change in the death rate and the change in the infection rate are partly a consequence of the natural flow and ebb of any epidemic infection.

ECONOMIST: AIDS

We have no idea whether this lack of natural exposure might influence how serious an epidemic of smallpox might be.

CNN: Dr. William Hall: Medical impact of bioterrorism