This is a test of the emergency alert system. 现在是紧急警报系统测试。
Objective To study current situation and existed problems in the public health emergency alert and response system so as to formulate more advices to consummate it and help to establish a more reasonable system adapting to our country. 目的了解我国现有的突发公共卫生事件应急预警体系的现状以及存在的问题,为建立合适的应急预警体系提供依据。