Study: Old drugs might give TB a 1-2 punch(AP)
AP – Scientists might have found a way to deal drug-resistant tuberculosis a one-two punch using two old, safe antibiotics—and studies in ill patients could begin later this year.

Finding genes that make teeth grow all in a row(AP)
AP – Ever wonder why sharks get several rows of teeth and people only get one? Some geneticists did, and their discovery could spur work to help adults one day grow new teeth when their own wear out.