{
  "abstract": "As measles elimination unravels across the Americas, Europe, and the Western Pacific, Japan is experiencing a resurgence of measles; the World Health Organization had verified elimination of measles in Japan in 2015. By epidemiologic week 20 of 2026, a total of 498 cases had been reported, exceeding every full-year total since 2020. Median case-patient age has fallen to 26 years, shifting the burden from a generation who received single-dose measles vaccinations to younger cohorts caught between successive vaccination-policy transitions. Among case-patients with a documented 2-dose vaccination history, more than half experienced modified measles, an attenuated, easily missed illness that delays diagnosis and isolation. As mass gatherings concentrate global travel, Japan has become a sentinel for the fragility of measles elimination, including in countries that consider elimination status secure. Surveillance shows importation-driven resurgence; the shift in genotype profile from D8 to B3 predominance back to D8 enabled tracking of source countries.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "review article",
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "name": "Koichiro Yuji"
    },
    {
      "name": "Wakako Yuji"
    },
    {
      "name": "Eisuke Adachi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4qrxnzs11a9e7.bib",
  "cited_by": 0,
  "doi": "10.3201/eid3211.261187",
  "fulltext_url": "https://wwwnc.cdc.gov/eid/article/32/11/26-1187_article",
  "id": "4qrxnzs11a9e7",
  "issns": [
    "1080-6040",
    "1080-6059"
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  "landing_url": "https://doi.org/10.3201/eid3211.261187",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
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  "metadata_licence": null,
  "native_subjects": [
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      "lcc",
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      "lcc",
      "RC109-216"
    ],
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      "openalex",
      "2713|Virology and Viral Diseases"
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  "openalex": "W7214713227",
  "pdf_url": null,
  "pmcid": "PMC13715881",
  "pmid": "42810357",
  "published": "2026-10-30",
  "publisher": "Centers for Disease Control and Prevention",
  "ris": "https://research.draconitic.com/paper/4qrxnzs11a9e7.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:44:05Z",
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      "url": "https://doi.org/10.3201/eid3211.261187"
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    {
      "first_seen": "2026-11-01T12:23:04Z",
      "native_id": "PMC13715881",
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      "url": "https://doi.org/10.3201/eid3211.261187"
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  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2713|Virology and Viral Diseases",
      "subfield": "epidemiology-public-health"
    }
  ],
  "title": "Importation-Driven Measles Resurgence and the Fragility of Elimination, Japan, 2024–2026",
  "title_text": "Importation-Driven Measles Resurgence and the Fragility of Elimination, Japan, 2024–2026",
  "type": "peer-reviewed",
  "updated_at": "2026-11-04T12:21:18Z",
  "url": "https://research.draconitic.com/paper/4qrxnzs11a9e7",
  "venue": "Emerging Infectious Diseases",
  "versions": []
}