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VACCINE FIGHT-TEXAS
State Rep. Donna Howard speaks about the vaccination issues in the state during a news conference at the Capitol, Wednesday, Dec. 7, 2016, in Austin, Texas. Texas could host the nation's next major fight over stricter requirements for immunizations as its rates of schoolchildren who refuse to get shots for non-medical reasons rises. (Deborah Cannon/Austin American-Statesman via AP)
HealthBeat Carbon Monoxide Poisoning
This photo provided by the University of Pittsburgh, Center for Biologic Imaging shows colorized scanning electron micrograph of red blood cells. Scientists are on the trail of a potential antidote for carbon monoxide poisoning, an injected "scavenger" that promises to trap and remove the gas from blood within minutes. It's very early-stage research, but a reminder that, however it turns out, there are steps people should take now to protect themselves from a silent killer that's far too common. (University of Pittsburgh, Center for Biologic Imaging via AP)