Age-specific seroprevalence showed a trend similar to the GMT in each year: less than 36.7% of children aged ≤7 months were seropositive.
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Cross-sectional surveys of measles antibodies in the Jiangsu Province of China from 2008 to 2010: the effect of high coverage with two doses of measles vaccine among children.
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The sentences
The GMTs of all 3 regions showed an increasing trend year by year.