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  "path": "/news/2026-05-hidden-tuberculosis-screening-patients-mortality.html",
  "publishedAt": "2026-05-12T07:20:01.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "Scientists have long known that the immune system plays a key role in aging. As people age, they have weaker responses to vaccination, greater risks of infection and higher levels of inflammation. A new study led by UCLA Health researchers used results of a routine clinical lab test to measure not only immune responsiveness but also how it links directly to a patient's long-term mortality.",
  "title": "Data hidden in tuberculosis screening tests shed light on patients' overall mortality"
}