New challenges have arisen in the public health control of emerging and re-emerging infectious diseases.
在对新出现和重新出现的传染病公共卫生控制方面，遇到了新的挑战。
Epidemics associated with emerging and re-emerging infectious diseases are now occurring in historically unprecedented Numbers.
与新出现和重现传染病相关的流行病目前正以历史上前所未有的数量发生。
Epidemics associated with emerging and re-emerging infectious diseases are now occurring in historically unprecedented Numbers.
与新出现和重现传染病相关的流行病目前正以历史上前所未有的数量发生。
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