Miǎnyì guīhuà dàdà jiàngdī le chuánrǎnbìng fābìnglǜ.
The immunization program has greatly reduced infectious disease rates.
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China's 国家免疫规划 (National Immunization Program), launched in 1978 and expanded in 2008, provides free vaccines against 15 diseases for every child — one of the largest public-health programs in the world.