(AP) - With one-fifth of states seeing active measles outbreaks, the U.S. is nearing 900 cases, according to figures posted Friday by the U.S. Centers for Disease Control and Prevention.

The Denver County resident who was vaccinated recently returned from Mexico, and officials warned of possible exposures at ...

The spiking rates of two diseases could be signaling a return of childhood illnesses, according to a new ProPublica report.