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Former British PM Thatcher Dead at 87

Former British Prime Minister Margaret Thatcher has died at the age of 87 following a stroke.

Britain's only female prime minister was a tough, outspoken woman who led the Conservative Party to three election victories from 1979 to 1990.

That was the longest continuous period in office by a British prime minister since the early 19th century.

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FILE - Dr. Felicity Hartnell, who is a clinical research fellow at Oxford University, holds a vial of an experimental vaccine against Ebola in Oxford, England, Sept. 17, 2014.

WHO: Ebola Vaccine Could Be in Use by January

Assistant director says that clinical trials of Ebola vaccines are underway or planned in Europe, United States, Africa More

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