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With nearly 5,000 cases reported so far this year — and concerns about a new strain — the Democratic Republic of Congo is considering the declaration of a public health emergency.
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Health officials say there's very little risk to humans from the bird flu outbreak among dairy cattle, but there's still much they don't know. Here are four questions scientists are trying to answer.
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Climate change is making it harder to meet clean air goals, says the 25th annual State of the Air report from the American Lung Association.
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The case comes from Idaho, where the law banning abortions is sufficiently strict that the state's leading hospital system says its patients are at risk.
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The agency stressed the material is inactivated and that the findings "do not represent actual virus that may be a risk to consumers," but it's continuing to study the issue.
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The Supreme Court will consider the question: Should doctors treating pregnancy complications follow state or federal law if the laws conflict? Here's how the case could affect women and doctors.
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The raging debate over how to juggle kids and work.
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About 1,200 people die from extreme heat each year. As temperatures soar, the CDC is unveiling plans to help people deal with potentially record summer heat.
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Critics say the U.S. has been unwilling to push for measures in a global agreement that would drive big cuts in plastic waste.
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Released on Earth Day, the federal government's new "HeatRisk" tool can help people assess when heat goes from uncomfortable to dangerous.
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Drug company reps commonly visit doctors to talk about new medications. A team of economists wanted to know if that helps patients live longer. They found that for cancer patients, the answer is no.
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Thousands of years ago, there was a ceremony to bind close friends together as sworn siblings. Could the practice be resurrected today to strengthen modern friendships? Two women did just that.