Nancy Clark, assistant commissioner for environmental disease prevention at the New York City Health Department, said one suspect, a new ventilation system at the school, did not appear to be a cause.

纽约卫生署环境疾病防治助理处长Nancy Clark提到一个疑点，就是学校一个不引人瞩目的新通风系统。

youdao

The African Union and the US Centers for Disease Control and Prevention are jointly establishing a Communicable Disease Control system that will help African nations be better prepared for outbreaks.

非洲联盟和美国疾控中心正在联合建立传染病控制系统，这会有助于非洲各国更好地做出疫情防备。

youdao

Establish a fully functioning system for disease prevention and control and for emergency medical aid that covers bot.

基本建成覆盖城乡、功能完善的疾病预防控制和医疗救治体系。

youdao

According to data from the Centers for Disease Control and Prevention's Behavioral Risk Factor Surveillance System Survey 2004, more than 70% of adult Milwaukeeans reported that they had had at least one alcoholic drink within the past 30 days--the highest percentage on our list.

FORBES: America's Drunkest Cities

And like a cold, it attacks the respiratory system, the Centers for Disease Control and Prevention have said.

CNN: Dangerous virus newly found in humans diagnosed in France

And like a cold, NCoV infection attacks the respiratory system, the Centers for Disease Control and Prevention have said.

CNN: Second case of challenging virus reported in France