Feb 19

A detailed new map of our genome in action

Your genome contains thousands of genes, possible instructions that build your cells. So how do cells know which genes to use? A set of markers called the epigenome tells them which genes to turn on and off. But if they…

For the first time, an experimental vaccine taken by 20 healthy adults is successfully and safely stimulating an immunity against Ebola. Judy Woodruff talks to Anthony Fauci of the National Institutes of Health on how the vaccine was developed and…

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