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Faulty glucose monitors linked to 7 deaths and more than 700 injuries, FDA warns

About 3 million Abbott FreeStyle Libre 3 sensors in the U.S. may give false low glucose readings, linked to 7 deaths and over 700 serious injuries worldwide, FDA warns.

  • On Dec. 2, 2025 the U.S. Food and Drug Administration warned that certain FreeStyle Libre 3 and FreeStyle Libre 3 Plus sensors were linked to at least seven deaths and more than 700 serious injuries, urging patients to stop using and dispose of affected sensors immediately.
  • Abbott said a manufacturing issue on one production line caused some sensors to show incorrect low glucose readings and initiated a medical device correction after internal testing and a Nov. 24, 2025 customer letter.
  • About 3 million sensors in the U.S. are potentially affected, including FreeStyle Libre 3 Sensor model numbers 72081-01, 72080-01, and FreeStyle Libre 3 Plus Sensor model numbers 78768-01, 78769-01, with UDIs 00357599818005, 00357599819002, 00357599844011, 00357599843014.
  • Consumers can verify serial numbers and request free replacements at FreeStyleCheck.com, while Abbott said it expects no major supply delays and the FDA will monitor the issue for a possible recall.
  • Millions who rely on continuous glucose monitors face risks because incorrect low readings may lead users aged four and older to skip insulin or consume excess carbohydrates, Health Canada also issued a recall.
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Fox 6 now broke the news in Milwaukee, United States on Tuesday, December 2, 2025.
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