Nurith Aizenman

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.

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.

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?

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.

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.

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 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.

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.