Prevention Most at in children may be avoided 2. The purpose of WHo for 21 century 3. Decrease the mortality of AT: 50%-75% 4. Strategy of prevention: (1) good care of high-risk population and security procedures (2) good corporation of relative department or agency of society and government (3)improvement of the security measures (4) set up the system of monitoring and promoting 3 Key-points: prevention, rescue promptly and correctlyPrevention 1. Most AT in children may be avoided 2. The purpose of WHO for 21 century 3. Decrease the mortality of AT : 50% - 75% 4. Strategy of prevention： (1) good care of high-risk population and security procedures (2) good corporation of relative department or agency of society and government (3) improvement of the security measures. (4) set up the system of monitoring and promoting ◼ 3 Key-points: prevention, rescue promptly and correctly