The discipline of public health inherently prioritises the collective good over individual freedom

Analysis of the virus initially showed similarities with other viruses from bats. But more detailed testing suggested it may have been snakes—which were sold in the Wuhan market the outbreak is thought to have started in

The big practical challenge involves developing responses at national and international level so that we can co-ordinate and act in the face of a global pandemic

There have been only 34 cases of the disease worldwide in 2015. It's nearly gone—but nearly will not do

It's chikungunya and flu we ought to dread

We are learning how to grow organs in laboratories instead of relying on donors, says Philip Hunter