Professor David Salisbury, director of immunisation at the Department of Health, said that such worries were "theoretical, with no evidence".

卫生部免疫接种主管戴维·斯伯里教授说这种担心是“假设，没有证明的”。

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Professor David Salisbury, director of immunisation at the Department of Health, said that such worries were "theoretical, with no evidence".

卫生部免疫接种主管戴维·斯伯里教授说这种担心是“假设，没有证明的”。

youdao