Maternal vaccination against H1N1 influenza and offspring mortality: population based cohort study and sibling design - PubMed

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妊娠中のインフルエンザワクチン接種は、赤ちゃんの死亡率に影響しない。 【元記事（英語）】Maternal vaccination against H1N1 influenza and offspring mortality

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“H1N1 vaccination during pregnancy is not associated with adverse fetal outcome or offspring mortality, including when familial factors are taken into account.”