两野毒株均有33个碱基发生改变。

There were 33 nt which had varied.

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目的了解浙江省麻疹野毒株的抗原性变异状况。

Objective To study the antigenic variation of wild-type measles virus prevailing in Zhejiang Province.

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结论浙江省麻疹野毒株已出现明显的抗原性变异。

Conclusions Wild-type measles virus prevailing in Zhejiang Province has appeared significant antigenic variation.

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