The vaccine is now moving on to large-scale trials to assess its efficacy.
A third of Americans would refuse a vaccine even if it were free. A sixth of Britons would also refuse it.
The effects of the explosion have now been mapped from space.
Complex criminal organizations are very resilient to disruption. A novel approach may help law enforcement tackle them.
Researchers want to continue exploring the island's plants, which are in danger from loggers and farmers.
Its a sign we'd better not ignore.