Surgeons transplanted a kidney and thymus gland from a gene-edited pig into a 54-year-old woman in an attempt to extend her life. It's the latest experimental use of animal organs in humans.
The agency stressed the material is inactivated and that the findings "do not represent actual virus that may be a risk to consumers," but it's continuing to study the issue.
In mid-November, Voyager 1 suffered a glitch, and it's messages stopped making sense. But the NASA probe is once again sending messages to Earth that make sense.
Studies suggest people who take metformin for diabetes may be at lower risk for cancer, heart disease and dementia. Now researchers aim to test if it prevents age-related diseases in healthy people.
Drug company reps commonly visit doctors to talk about new medications. A team of economists wanted to know if that helps patients live longer. They found that for cancer patients, the answer is no.