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An Ebola test vaccine provided blanket protection in a field trial in Guinea, researchers said, possibly heralding "the beginning of the end" for the devastating West African outbreak that has killed thousands. The serum was 100 percent effective after a week in more than 7,600 people inoculated, according to results published in The Lancet medical journal and hailed as "extremely promising" by World Health Organization (WHO) chief Margaret Chan. The world was "on the verge of an effective Ebola vaccine," the UN's health agency said in a statement.
Delegates negotiating a vast Pacific free-trade agreement failed to reach a final deal after several days of intense talks in Hawaii, in a setback to US President Barack Obama. "After more than a week of productive meetings we've made significant progress and will continue on resolving a limited number of remaining issues, paving the way for the conclusion of the Trans-Pacific Partnership negotiations," Froman told a press conference. The negotiators were "more confident than ever that the TPP is within reach," he said, adding that the Pacific Rim countries involved would continue to have bilateral discussions to try and iron out their remaining differences.