World Health Organization

The World Health Organization advisory group will include scientists from the U.S., China and two dozen other countries and will study various hypotheses, including the possibility of a lab leak.

It's also the first vaccine against a parasitic disease in humans. But there are issues to consider, from its rate of effectiveness to the dosage schedule.

Cuba has started selling its COVID-19 vaccines abroad. It insists its trials show they're safe and effective — so why hasn't the World Health Organization said so too?

The pandemic has hurt even routine health services such as vaccines and checkups, as well as immunization outreach, for children around the world, the World Health Organization and UNICEF report.

Haiti has received half a million doses of the Moderna COVID-19 vaccine from the Biden administration.

The new names won't replace the scientific names already assigned to new variants, but the WHO said it's making the change to help avoid fueling stigma toward nations where new variants arise.

Biden's budget follows through on a campaign promise to overturn the Hyde Amendment, a longstanding ban on federal funding for most abortions. It's not clear the change will be approved by Congress.

Pathogens can blossom from an outbreak into a pandemic because they "exploit our interconnectedness and expose our inequities and divisions," the World Health Organization's leader says.

The global study, which the WHO calls the first of its kind, found that more than 745,000 people died in 2016 from overwork that resulted in stroke and heart disease.

A report that gathered data from 161 countries and areas paints a "horrifying picture," said WHO's director-general. And there's concern that the pandemic has made matters worse.

Due to limited resources, delayed start-ups, chronic shortages — and official scandals — only a fraction of Latin America and the Caribbean has been inoculated.

Virologist Marion Koopmans was part of a WHO team that reconstructed the early coronavirus outbreak in Wuhan, China. She talked with NPR about her team's investigation.