The US Food and Drug Administration (FDA) has approved five medications in the last month.

For kids with acute lymphoblastic leukemia (ALL), bacterial infections can cause dangerous complications. But a new treatment option may be able to help.

Adults with certain immune system conditions often require different recommendations for the vaccines they can and should receive. A new vaccine has been added to these recommendations.

Scientists understand the big picture of how vaccines work in the body but not all the specifics at the cellular level. Now they have discovered one more piece of the puzzle.