LifeEbola rapidly evolves to be more transmissible and deadlier The last Ebola epidemic was the worst ever. But it seems the virus quickly learns to spread more readily, which may make the next outbreak even harder to stop ¿ìè¶ÌÊÓÆµ
HumansNeuroscientist sees kids suffer brain damage due to dire poverty What does extreme deprivation do to the brain? Charles Nelson has spent his career studying – and helping – children living in the worst possible circumstances Features