Secondly, in a global age, when people and goods move around quickly, one area's problems with its food or water can quickly spread elsewhere, and infectious diseases spread in concert with the growth in travel and trade. Successful monitoring and prevention of infectious diseases requires cooperation from all nations.
第二個，從功能性的觀點看，在全球化時代，物資、人員流通迅速，一地的食物、水出現問題，很快就會流入其他地方，疾病的傳染也隨著旅遊、貿易發達而加速傳播，如何有效監測和防治傳染病，需要各國合作，因此是國際間十分重視的議題。