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The trees died first. One hundred million of them in the eastern and midwestern United States. The culprit: the emerald ash borer, a beetle that entered the U.S. through Detroit in 2002 and quickly spread to Iowa, New York,…

In 2014, many HIV patients who receive medication through state-based drug assistance programs will be shifted to other forms of health coverage. It's an uncertain time for most HIV patients in the United States. A full two-thirds of them rely…