自2019年以来，未接种两剂麻疹疫苗的美国幼儿园儿童比例显著增加。这一比例从4.8%上升到7.6%，表明幼儿对麻疹的易感性正在增加。数据显示了疫苗接种率令人担忧的趋势，其中短缺尤其集中在某些未被更广泛的县级平均水平所涵盖的学校。 AI
排序理由 文章讨论了公共卫生趋势，但未涉及人工智能或重大的技术进步，符合用于一般新闻的“meme”类别。
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自2019年以来美国幼儿园儿童麻疹易感性急剧上升
本文如何被排名
- Signal score
- 0 / 100
- Composite score across the factors below. Higher = stronger signal that this story matters right now.
- Newsworthiness bucket
- Meme
- 文章讨论了公共卫生趋势，但未涉及人工智能或重大的技术进步，符合用于一般新闻的“meme”类别。
- Source corroboration
- Single-source cluster
- Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
- Topics
- other
- Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
- AI-industry relevance
- Low
- Off-topic or adjacent — cluster remains reachable but doesn't surface in AI-industry rankings.
- Story freshness
- 12 days old
- Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.
完整方法见我们的编辑标准。
报道来源 [1]
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自2019年以来，美国幼儿园儿童的麻疹易感性上升了50%以上
The share of US kindergartners without both MMR doses has risen from 4.8 to 7.6 percent since 2019, and the shortfall is concentrated in schools county averages cannot see.