Humans
We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
More evidence hints that hydroxychloroquine doesn’t help treat COVID-19
A malaria drug showed no benefit over standard care in two preliminary studies examining how well hydroxychloroquine works against the coronavirus.
- Humans
Here’s where things stand on COVID-19 tests in the U.S.
Government officials are weighing how to loosen social distancing measures across the United States, but that hinges on widespread COVID-19 testing.
- Health & Medicine
Why 6 feet may not be enough social distance to avoid COVID-19
Scientists who study airflow warn that virus-laden drops may travel farther than thought.
- Health & Medicine
COVID-19 may be most contagious one to two days before symptoms appear
The coronavirus probably spreads the most before symptoms appear, making containing viral transmission harder.
- Health & Medicine
Why African-Americans may be especially vulnerable to COVID-19
African-Americans are more likely to die from COVID-19 than white Americans, data show. Experts blame long-standing health disparities.
- Health & Medicine
Meet Sophia Upshaw, a volunteer in a coronavirus vaccine trial
In Seattle and Atlanta, scientists have started testing the safety of a potential vaccine to prevent COVID-19.
- Health & Medicine
Can fabric masks stem the coronavirus’ spread?
It’s unclear whether homemade masks made from fabric will prevent an infected person from spreading the virus to others, experts say.
- Paleontology
Two primate lineages crossed the Atlantic millions of years ago
Peruvian primate fossils point to a second ocean crossing by a now-extinct group roughly 35 million to 32 million years ago.
- Health & Medicine
Warm weather probably won’t slow COVID-19 transmission much
While some evidence has suggested higher temperatures can affect coronavirus transmission, summer’s arrival probably won’t curb the pandemic much.
- Archaeology
This is the oldest known string. It was made by a Neandertal
A cord fragment found clinging to a Neandertal’s stone tool is evidence that our close evolutionary relatives were string makers, too, scientists say.
- Health & Medicine
Can plasma from recovered COVID-19 patients treat the sick?
Researchers are racing to set up clinical trials of antibody-rich convalescent plasma from recovered patients to treat or prevent COVID-19.
- Health & Medicine
Just breathing or talking may be enough to spread COVID-19 after all
Until now, experts have said that the virus spreads only through large droplets released when people cough or sneeze, but it may spread more easily.
