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    "story_id": "mp-2026-07-18-006",
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    "headline": "A Test Strip Builds More Places for a Virus Signal to Land",
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    "dek": "An enzyme-free molecular bridge amplifies Chikungunya RNA detection on a portable lateral-flow format.",
    "summary": "An enzyme-free molecular bridge amplifies Chikungunya RNA detection on a portable lateral-flow format.",
    "body_text": "Chinese researchers built a two-round catalytic hairpin system that creates multiple binding sites before gold-platinum nanoparticles deepen the visible line. Chikungunya served as the model target. The approach is designed to avoid thermal cycling and fluorescence readers, but field performance across mosquito-borne viruses still requires validation.",
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    "tags": [
      "diagnostics",
      "Chikungunya",
      "lateral flow"
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      "source_id": "source-2026-07-18-006",
      "title": "CAS via Newswise: Multisite mosquito-virus test strip",
      "publisher": "Chinese Academy of Sciences via Newswise",
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    "title": "A Test Strip Builds More Places for a Virus Signal to Land",
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