6,164 results
- Climate
A UN report shows climate change’s escalating toll on people and nature
The latest United Nations' IPCC climate change report underscores the urgent need for action to avoid the worst consequences of global warming.
- Health & Medicine
How different COVID-19 testing plans can help keep kids safe in school
As children head back to school in the United States, here’s a look at various testing strategies that could keep kids safe during in-person learning.
- Health & Medicine
Schools are reopening. COVID-19 is still here. What does that mean for kids?
Children do get COVID-19, and some become very sick and even die. But the disease’s long-term effects on kids remain uncertain.
- Health & Medicine
Could delaying a second vaccine dose lead to more dangerous coronavirus strains?
Some experts worry extending the time between vaccine doses could help the virus evolve in potentially harmful ways, but viral evolution is complex.
- Health & Medicine
Here’s what breakthrough infections reveal about COVID-19 vaccines
Studies analyzing vaccinated people in the real world show that COVID-19 vaccines are extremely effective, but experts are keeping an eye on variants.
- Science & Society
COVID-19 has killed a million Americans. Our minds can’t comprehend that number
We intuitively compare large, approximate quantities but cannot grasp such a big, abstract number as a million U.S. COVID-19 deaths.
- Health & Medicine
As the COVID-19 pandemic evolves, we answer 7 lingering vaccine questions
As U.S. vaccination efforts shift to get shots to the hard-to-reach, we take a look at some big questions about vaccines that still remain.
- Health & Medicine
How coronavirus variants may pose challenges for COVID-19 vaccines
Some coronavirus mutations may make vaccines less effective, but the immune system is multifaceted and vaccines can be updated.
- Health & Medicine
The CDC’s changes to mask guidelines raised questions. Here are 6 answers
Experts weigh in on the U.S. CDC’s recommendation fully vaccinated individuals removing masks indoors and what it means for the pandemic’s future.
- Health & Medicine
Novavax’s COVID-19 vaccine is effective, but less so with some variants
Novavax’s vaccine fends off the original coronavirus and a U.K. variant, but had more trouble with a South Africa variant.
- Health & Medicine
What does the first successful test of a pig-to-human kidney transplant mean?
For the first time, a pig organ was successfully attached to a human patient. It’s a step toward vastly increasing the supply of organs.
- Health & Medicine
Moderna and Pfizer COVID-19 vaccines may block infection as well as disease
The mRNA vaccines are about 90 percent effective at blocking coronavirus infection, which could lead to reduced transmission, real-world data suggest.
