Uploaded August 2026 | Updated September 2026, 2 weeks ago

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Bailey the beagle is one of only 2 puppies that has been genetically engineered in a lab to be completely allergy free. Her human, Matt Walker, is a geneticist who grew up allergic to dogs his whole life and he hopes gene editing technology can help other breeds find homes. NBC’s Gadi Schwartz reports for TODAY.

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