The blocked shipment of AstraZeneca COVID-19 vaccines was the first intervention by the EU since the bloc approved rules that could restrict vaccine exports to non-member nations.
The third COVID-19 vaccine authorized for use in the U.S. requires one shot instead of two, and works a slightly different way from the others. Here's what we know about its safety and effectiveness.
Much of the blame for Brazil's coronavirus disaster lies with Jair Bolsonaro, who has enabled a domestic tragedy that now threatens the world, says analyst Robert Muggah.
It's the first country to receive free vaccines from the COVAX program. But that shipment of 600,000 can't protect a nation of 30 million. And conspiracy theories about the vaccine are swirling.
Seven years after the kidnapping of 276 Nigerian schoolgirls, a new book shares insights into their survival strategies — and looks at the mixed blessing of the 'Bring Back Our Girls" campaign.
Scientists are spotting new coronavirus variants almost on a daily basis. So far public health experts are still most worried about three important ones.
Demonstrations have been going on for months. Pop stars and climate activists have pledged support for the farmers. What sparked the movement is less glamorous: New rules for wholesale markets.
Getting COVID-19 tests and vaccine to essential workers on commercial farms and in meatpacking plants requires more than a pop-up clinic miles away. A positive test can be financially devastating.
How does a herd decide which direction to head in? Researchers put GPS collars on a gathering of goats to find out. Here's what they learned — and how it might apply to humans.
Wildfires are burning more frequently and intensely in a warming world, making them harder to put out. Some fire agencies are expanding support as they see increased cases of anxiety and depression.
Many of the coronavirus vaccines like it cold. Really cold. Sub-zero cold. Why is this the case? And how is the world handling this frigid requirement?
The pandemic has slowed efforts to eradicate the contagious disease. Yet the country's polio effort offers insights on the launch of its coronavirus vaccine campaign.
In areas with limited access to clean running water, hand-washing stations can help limit the spread of disease. But experts say not all taps are created equal.
Dr. Rochelle Walensky says scientists at the Centers for Disease Control and Prevention were "muzzled" and "diminished" by the Trump team, especially during the pandemic. She aims to fix that.
That's the question posted by a study in TheLancet Planetary Health. In case you're wondering, the United States is characterized as "loose." And Singapore is "tight."
People were dying of a disease that could be treated — but in poor countries, they did not have access to medicines that could help. That was the story of HIV — and now of COVID-19.
As the country faces another wrenching milestone, there are signs of hope that we may be beating back the virus. But a brighter future won't bring back precious lives lost.
Are there issues with having a mammogram right after a vaccine? Is there a list of vaccine ingredients — some people say they're scary. Also: My pooch loves to sniff discarded masks. Should I worry?
The Prime Minister of Trinidad and Tobago gave an impassioned speech about the vaccine rollout, warning of hoarding and price gouging. Here's what we could find out about the cost of a dose.
