epidemiological

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To date, epidemiological studies have not found an association between radon in drinking water and cancer of the digestive and other systems.
迄今开展的流行病学研究未发现饮用水中的氡与消化系统及其它系统的癌症之间有联系。
Epidemiological investigations and genotyping have confirmed transmission of measles virus among several countries in the Region and to the Americas.
流行病学调查和基因型分型均已确认在这一区域多个国家和美洲有麻疹病毒传播。
Blood and organ donation restrictions and laboratory testing should be considered at the time of the outbreak in the affected areas after assessing the local/regional epidemiological situation.
疫情发生时，在对本地/地区的流行病学状况评估之后，应考虑在受感染地区限制血液和器官捐献并开展实验室检验。

"Now,with large epidemiological studies done everywhere including here, we can say with a great level of confidence that the disease affects roughly the same percentage of the general public worldwide.
Hope Ferdowsian of the Physicians Committee says "For example,in HIV research, we've learned a lot from human epidemiological studies and ethically conducted clinical trials."
(OMITTED) It's still low prevalence, but you know we've just put out the synthesis report, which was an epidemiological study of HIV and its evolution in the region, and the report says that probably, at least for the near future, we'll never have an epidemic of HIV in the region.

The first clinical and epidemiological studies linking cigarette-smoking and lung cancer were published only in 1950.
ECONOMIST: Tobacco

流行病学
Methods:Descriptive epidemiological approaches were used to analyze the disease.
方法：采用描述流行病学方法分析出血热疫情。
农业科学
流行病学
Several epidemiological studies have reported that SS9 is also frequently isolated from the organs of diseased pigs in China.
流行病学调查表明,在中国SS9也经常从病猪中分离到,并逐步呈上升趋势。