More than 40 people in the US have been released from quarantine after showing no signs of Ebola. Authorities and experts are cautiously optimistic that the virus is being contained.
West African countries that have escaped the Ebola outbreak intend to stay free of it by preparing for the worst. It is a strategy that can work as events in Senegal and Nigeria have shown.
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Current topics in research and projects in Germany and Europe
For over a century, scientists believed it was impossible to see viruses and single molecules with a microscope. But three researchers broke through this "physical limit" and are now Nobel Laureates.
Energy-saving light-emitting diodes have conquered the world. Diodes for red and green light have been on the market for 50 years. But blue was a huge challenge - until three Japanese physicists came along.
Men are said to be better than women at creating maps in their brains. But as the three winners of the 2014 Nobel Prize in Medicine show, even mice have brain cells for navigation.