Public Health
How the Delta Variant Spreads So Quickly
Viral load is roughly 1,000 times higher in people infected with the Delta variant than those infected with the original coronavirus strain, according to a study in China
Nature
Public Health
Should Children Get COVID Vaccines? What the Science Says
With vaccination campaigns underway in some countries while others weigh the options, Nature looks at the evidence for vaccinating younger people
Climate
China Launches World’s Largest Carbon Market: But Is It Ambitious Enough?
Experts welcome the trading scheme, but question whether it is up to the task of helping China achieve its climate goals
Biology
Behold the ‘Borg’: Massive DNA Structures Perplex Scientists
Researchers say they have discovered unique and exciting DNA strands in the mud; others are not sure of their novelty
Public Health
Kids Get ‘Long COVID,’ Too
Children can suffer lingering symptoms from the disease, but researchers are still working to determine how frequently and how severely
Biology
‘Inflammation Clock’ Can Reveal Body’s Biological Age
Using machine learning, researchers created a tool that might help doctors improve people’s healthy lifespan
Medicine
Mix-and-Match COVID Vaccines: The Case Is Growing, but Questions Remain
Studies suggest mixing vaccines provokes potent immune responses, but scientists want answers on real-world efficacy and rare side effects
Public Health
Six Months of COVID Vaccines: What 1.7 Billion Doses Have Taught Scientists
At a pivotal moment in the pandemic, Nature explores key questions about the vaccines that countries are racing to deliver while viral variants spread around the globe
Public Health
COVID Vaccines Will Not Reach Poorest Countries Until 2023
Amid a COVID surge in Africa, vaccine promises from richer nations are not enough to bring an early end to the pandemic, experts say
Public Health
Why Uruguay Lost Control of COVID
Complacency and a coronavirus variant help to explain why the country, once a pandemic success story, couldn’t withstand the surge now rocking South America
