Sarah Boseley

The virus’ resurgence, this time in a city of more than one-million people could set the scene for a fast-spreading disaster.

The army is to enforce the government’s travel ban during the Christmas period and a military presence aims to deter street celebrations.

Low HIV rates in West Africa meant the region did not benefit from international aid for clinics and staff, leaving healthcare systems to crumble.

Doctors say the funds spent on airport checks would be better used to stop Ebola at its source.

With the death rate at 70%, new strategies, resources and tough targets are being put in place.

As healthcare systems collapse from the strain, the race is on to find a treatment that works.

With the US defying drug conventions it once policed so heavily, resistance is fertile.

A new assessment of the evidence suggests putting on weight increases one’s risk of the disease.

Extensive research on children is ringing alarm bells about allergies.

Americans may be rich, but they’re fat, sick and dying young, according to an official report, writes Sarah Boseley.

The drive to prevent childhood obesity in the United Kingdom has not made progress.

The death toll is falling but there is still no hope for an end to the worldwide pandemic.

The prohibitive cost of cancer medicines and their lack of efficacy means early intervention is more important than ever.

A new study says televisions, computers, cellphones and console games are causing untold harm to children under three.

Teens who are regular users of cannabis are at risk of permanent damage to their intelligence, according to research covering nearly four decades.