Lack of antibody tests obscures impact of the novel virus.

The president's new budget would cut more than $3 billion in global health programs.

New outbreak comes as Tedros Adhanom Ghebreyesus struggles to raise more money, thwart Ebola, and fight health misinformation.

Medical sources in the city confirm rate of infection, but say they have been told not to release the full picture to the public.

The present outbreak of lower respiratory tract infections, including respiratory distress syndrome, is the third spillover, in only two decades, of an animal coronavirus to humans resulting in a major epidemic.

As the new coronavirus continues its deadly spread, researchers must ensure that their work on this outbreak is shared rapidly and openly.

Modelers are trying to forecast how the virus will move, but they need better data.

New diseases are mirrors that reflect how a society works-and where it fails.

The potentially illegal archive is a 'moral imperative,' said one organizer.

Experts see two scenarios: 2019-nCoV becomes like the four little-known coronaviruses already endemic in people, or it becomes like the seasonal flu.

A traveler to Germany from China who infected another person did feel ill, contradicting New England Journal of Medicine report.

Scientists are rapidly posting findings about the new coronavirus outbreak online, accelerating the speed of scientific discoveries - and of misinformation.

The failure-ridden search for a vaccine that can stop the AIDS virus has delivered yet another frustrating defeat.

Here's what the oft-cited R0 number tells us about the new outbreak-and what it doesn't.

They are considered the probable source of the coronavirus outbreak spreading from China. It turns out that they may have an immune system that lets them coexist with many disease-causing viruses.

Even in the best-case scenario, developing, testing, and mass-producing a new vaccine takes many months.