Humans
- Health & Medicine
What experts know so far about the delta variant
The variant, which first emerged in India, is outcompeting other highly transmissible forms of the coronavirus as it spreads around the world.
- Health & Medicine
A malaria vaccine with live parasites shows promise in a small trial
After taking anti-malarial drugs after each vaccine dose to clear the parasite from the body, volunteers appeared well-protected from infection.
- Humans
Ancient human bones reveal the oldest known strain of the plague
The earliest known plague strain emerged about 7,100 years ago and was less contagious as the one behind Black Death — but was still deadly.
- Health & Medicine
How COVID-19 vaccines were made so quickly without cutting corners
Usually it takes years to get both test results and FDA authorization, but speedy spread of the virus and eager volunteers shrunk the shots’ timeline.
- Genetics
Embryos appear to reverse their biological clock early in development
A new study suggests that the biological age of both mouse and human embryos resets during development.
- Anthropology
‘Dragon Man’ skull may help oust Neandertals as our closest ancient relative
A Chinese fossil has been classified as a new Homo species that lived more than 146,000 years ago, but not all scientists are convinced.
- Anthropology
Israeli fossil finds reveal a new hominid group, Nesher Ramla Homo
Discoveries reveal a new Stone Age population that had close ties to Homo sapiens at least 120,000 years ago, complicating the human family tree.
- Health & Medicine
The benefits of COVID-19 mRNA vaccines outweigh the risk of rare heart inflammation
A CDC group says the benefits of the Pfizer and Moderna shots outweigh the risk of myocarditis and pericarditis in adolescents and young adults.
- Health & Medicine
How relocating musicians can reduce COVID-19 risk at concerts
Based on simulations of how air flows across a stage, the Utah Symphony rearranged where its musicians sit and boosted ventilation.
- Health & Medicine
How COVID-19 created a perfect storm for a deadly fungal infection in India
Amid the chaos of the COVID-19 pandemic, numbers of rare but dangerous “black fungus” infections have skyrocketed in the country.
- Health & Medicine
Controlling nerve cells with light opened new ways to study the brain
A method called optogenetics offers insights into memory, perception and addiction.
- Health & Medicine
How one medical team is bringing COVID-19 vaccines to hard-to-reach Hispanic communities
Unidos Contra COVID’s Spanish-speaking volunteers go to where Philadelphia’s Hispanic people gather, giving shots and addressing concerns one-on-one.
