A deadly bacteria has been infecting children for more than 1,400 years

The tragic death of a 6-year-old boy in early medieval England has given scientists the earliest direct clue to the history of the pathogen Haemophilus influenzae type b. Dated to…

Genetically engineered immune cells have kept two people cancer-free for a decade

In 2010, two blood cancer patients received an experimental immunotherapy, and their cancers went into remission. Ten years later, the cancer-fighting immune cells used in the therapy were still around,…