"They have the longest lifespan in the world, the lowest incidence of obesity, heart disease and diabetes."

VOA: standard.2010.02.23

If we looked in 1950, this is the incidence of paralytic, or the worst form of poliomyelitis in the U.S.

让我们回首一九五零年,这表示的是在美国因脊髓灰质炎,所致瘫痪的发生率

耶鲁公开课 - 生物医学工程探索课程节选

We'v e shown that learning optimism prevents depression and anxiety in children and adults, roughly halving their incidence over the next 2 years.

研究证实，乐观可帮助儿童和成人,预防抑郁和焦虑，使未来两年的发病率降低一半。

哈佛公开课 - 幸福课课程节选

Normally,Papua New Guinea, a mountainous, jungle-covered nation, contends with a high incidence of dengue fever and malaria.

VOA: standard.2009.09.14

You have to test it by giving the vaccine to a large population of people, and then watching and seeing if you've reduced the incidence of the disease.

这样的测试的做法只能是,给大量人群分发疫苗,接着观察和了解,这种疾病的发病率是否有所降低

耶鲁公开课 - 生物医学工程探索课程节选

South Africa is currently in a recession and must respond to major domestic issues such as the highest global incidence of HIV and AIDS;

VOA: standard.2009.08.08

Our genetics cannot change this quickly in order to explain the increase in incidence."

VOA: standard.2010.08.09

Some climate scientists think the Australian continent is particularly susceptible to a shifting climate and predict a greater incidence of droughts, floods and storms as the Earth warms.

VOA: standard.2009.11.09

Rising flood waters raise the incidence of malaria and diarrheal disease.

VOA: standard.2009.09.06

In addition,the study revealed that minority children had a higher incidence of HIV/AIDS, sexually transmitted diseases, asthma,certain cancers, and even success rates for treatment of kidney and heart diseases.

VOA: standard.2010.04.07

"I think that by having people adopt a healthy lifestyle, both from a medical standpoint as well as nutritional and cognitive stimulation standpoint, that we can reduce the incidence of cognitive decline, which will be proof that these factors are, in fact,important."

VOA: standard.2010.06.17