Nurith Aizenman

From the start of the war in Ukraine, food policy experts have worried that a hunger crisis could be in the making, given how important Ukraine and Russia are to global food supply.

As the world enters the pandemic's 3rd year, some ask whether the 70% vaccination goal set by WHO and the Biden administration could in fact be detrimental. Also: See our map of global progress.

Two years after the World Health Organization declared the COVID outbreak a pandemic, the vaccination rate in poor countries remains well below global targets. But do those targets still make sense?

Both countries are huge suppliers of grains and other essential foods. And with widespread hunger and high food prices already, the war couldn't have come at a worse time.

The war in Ukraine is pushing up already record-high food prices around the world — threatening the lives of millions of people in poor countries struggling with hunger. Here's why it's not hopeless.

Dr. Paul Farmer, a global health champion, Harvard Medical School professor, anthropologist and co-founder of the nonprofit health organization Partners in Health, has died at age 62.

Known for his efforts to improve global health and as the founder of the nonprofit health organization Partners in Health, Farmer died in Rwanda at age 62.

New findings from Malawi suggest the country has entered something akin to the endemic stage of the pandemic — along with many other African nations.

In the United States there's lots of discussion about when the coronavirus will finally become endemic the way colds are. But African scientists say that may have already happened on their continent.

The program called COVAX was set up to make sure that all countries have access to COVID vaccines. Two key public health figures talk about what went wrong — and how to fix it.

COVAX was set up to enable global access to vaccines against COVID. Yet nearly 80 countries will miss a target of vaccinating 40% of their populations by year's end. Here's what went wrong.

With Omicron surging, the U.K.'s government is hoping to stave off hospitalizations and deaths through a massive effort to administer vaccine boosters. But the strategy faces major hurdles in the U.S.

How did this new strain of the novel coronavirus evolve? Researchers are investigating various possibilities. One leading theory involves ... just one person.

How did the coronavirus end up mutating into the omicron variant? One hypothesis is that it spent months replicating in the body of someone whose immune system was suppressed by uncontrolled HIV.

Pharmaceutical companies Pfizer and Merck have agreed to allow generic manufacturers to make inexpensive versions of their anti-viral pills to treat COVID-19.

Wealthy countries keep buying way more doses than they need. New data shows just how much the stockpile of unused vaccine is growing.

There's been a massive ramp up in production of COVID-19 vaccines. Yet low income nations still aren't getting enough. Analysts say it's because wealthy countries are buying way more than they need.

It's the first step in an audacious plan to solve vaccine inequity by setting up the manufacturing of mRNA vaccines across low-resource countries,

A consortium in South Africa wants to teach manufacturers in poor countries to make Moderna's COVID vaccine. But Moderna won't share its process. So the scientists are trying to reverse engineer it.

President Biden has unveiled a plan to vaccinate 70% of the world's population over the next year. But what will it take to get other rich countries on board? And is the goal ambitious enough?