Nurith Aizenman

The World Health Organization has lifted the Public Health Emergency of International Concern (PHEIC) for COVID-19. The declaration had been in effect since Jan. 30, 2020.

Botswana has one of the last thriving elephant herds – and a history of human-elephant conflict that threatens both sides. A nonprofit has a program to shift that dynamic. Will it work?

Botswana has one of the last thriving herds of elephants. But the animals are a menace to rural farmers. One nonprofit's solution: safari drives for local schoolkids. Can it work? NPR joins a trip.

The World Health Organization registry holds 11 million data points — key to addressing global health inequality. Yet health officials stress how much information is still missing.

Dr. Daniel Bausch says of his work, "You realize that's all on the response side." He's come to appreciate that "the impact is with trying to change the system."

In response to our series on spillover viruses, you had many questions: from the role of climate change to possible benefits. We turn the mic to you for a special edition of 'Hidden Viruses.'

Tuberculosis kills 1.6 million a year — the second deadliest infectious disease after COVID-19. Using immune cells and mRNA technology, scientists in South Africa are working on a new vaccine.

Russia's war on Ukraine affected grain shipments and raised concerns about a global food crisis. A year later, the worst fears about food prices and worldwide hunger failed to materialize.

That's what epidemiologist Jenny Cresswell of the World Health Organization said of death rate data in a new report she authored — "equivalent to almost 800 deaths a day or a death every 2 minutes."

The mRNA shots against COVID were a game-changer but the shots need ultra-cold freezers that are unavailable in many low-income countries. Now the hunt is on for innovations to solve this problem.

The South African-based scientist who co-discovered the omicron variant of COVID-19 makes an intriguing argument.

Disease researchers from South Africa were the first to identify the omicron variant of the COVID-19 virus. Scientists there are racing to detect new pathogens before they can spark another pandemic.

Afrigen is the linchpin of global project to use mRNA technology to empower low-resource countries to make their own vaccines against killer diseases from TB to HIV. What will it take to succeed?

Dr. Gabriela Kucharski's city of Toledo had virtually no vaccines. And it's a bastion of support for Brazil's vaccine skeptic president. Here's why that didn't matter.

Can we end poverty, provide food for all and otherwise make Earth a better place by 2030? By all accounts, the answer is no. So then what's the point of the Sustainable Development Goals?

Only one company makes the currently used monkeypox vaccine. Supply is limited in wealthy nations like the U.S. Less well-off nations, like Nigeria, where the outbreak began, have no vaccines at all.

As the U.S. and Europe spearhead COVID vaccines, other regions are left struggling to gain access. But now scientists from Latin America and Africa are collaborating on mRNA technology.

Pfizer and Moderna have refused to divulge details of how to make their cutting-edge COVID shots. Here's what two scientists — and longtime best friends — are doing about it.

Two women in Uvalde are spearheading an effort to soothe their community with food. Because Uvalde's resident's lives are so intertwined, everyone knows someone affected by the massacre.

The U.S. has pulled back funding for global vaccinations. Some countries — like Brazil — don't need the help. Vaccination rates remain low in other countries such as Iraq due to issues of mistrust.