Science correspondent Allan Blackman joins Kathryn to talk about a new part of the immune system that's been discovered and how it could be a goldmine of potential antibiotics. NASA has switched off ...

For much of human history, measles has been seen as a dangerous rite of passage in childhood. It’s more than just a bit uncomfortable, however. As many as 1 out of every 20 children with measles gets ...

Your immune system harbors a lifetime's worth of information about threats it's encountered—a biological Rolodex of baddies.

Portuguese researchers identified a type of immune cell that appears to travel to the pancreas to stimulate glucagon ...

The CDC highlights a rise in respiratory illnesses and flu cases. Sleep expert Michelle Drerup advises on sleep hygiene to ...