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"path": "/article/why-do-older-people-have-fewer-seasonal-allergies/",
"publishedAt": "2026-04-15T15:00:00.000Z",
"site": "https://www.scientificamerican.com",
"textContent": "Do declining immune systems explain the trend, or is something else going on? Experts explain",
"title": "Why do older people have fewer seasonal allergies?"
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