How donated plasma can help Ebola patients fight the disease

Professor Adrian Hill, director of the Jenner Institute and chief investigator of the trials with the Ebola vaccine Chimp Adenovirus type 3, helds a vial of the vaccine before injecting it into a British volunteer Ruth Atkins.

Steve Parsons/AFP/Getty Images

Antibodies in the blood of a survivor may help a patient fight off the germ.

Grace Silva survived cancer, against the odds, to meet her grandchildren.

Rare cancer recoveries could be key to wider treatments

Researchers are using an arsenal of biomedical tools to unlock the secrets of people who respond well to experimental drugs.

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Ancient settlement discovered high in Andes

About 12,000 years ago, small groups of hunter-gatherers found a home 14,700 feet above sea level.

Highest altitude settlements from ice age discovered

The human settlements date back to 12,400 years ago in the Peruvian Andes and sit more than 14,000 feet above sea level.

3rd spacewalk in 3 weeks at space station

Spacewalking astronauts doubled as trash men Wednesday, heaving an old science experiment and two antennas overboard at the International Space Station.

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