Deep inside an ant nest, some of the youngest members are primed to die for the group. When infection strikes, these baby ...

KJ Muldoon is walking at home ahead of Christmas after being hospitalized last holiday due to his rare genetic disorder, CPS1 deficiency Charlotte Phillipp is a Weekend Writer-Reporter at PEOPLE. She ...

When gene therapy was first proposed in the 1970s, the idea seemed straightforward but revolutionary: replacing defective genes with functional ones to cure a disease. But over the decades, this ...