2000年，全世界72%的儿童在1周岁前通过常规卫生服务获得一剂麻疹疫苗，到2008年，增至83%左右。

In 2008, about 83% of the world's children received one dose of measles vaccine by their first birthday through routine health services - up from 72% in 2000.

youdao

2000年，全世界72%的儿童在1周岁前通过常规卫生服务获得一剂麻疹疫苗，到2008年，增至83%左右。

In 2008, about 83% of the world's children received one dose of measles vaccine by their first birthday through routine health services - up from 72% in 2000.

youdao