Lab-Grown Blood Stem Cells Produced at Last
Two research teams cook up recipe to make long-sought cells in mice and people
Stories by Amy Maxmen
Autism May Be Linked to Cells That Prune Brain Connections
A difference in these trimming cells between the sexes might render males most vulnerable to the disorder
Psychedelic Compound in Ecstasy Moves Closer to Approval to Treat PTSD
A promising treatment that uses MDMA could help people suffering with post-traumatic stress disorder
Big Data Renews Fight Over the Origin of Animals
A new study is the latest in the long-running dispute over which lineage—sponges or comb jellies—is the ancestor to all animals
Hidden HIV Reservoirs Exposed by Telltale Protein
The discovery may help doctors identify elusive infected cells in the body
Synthetic Yeast Chromosomes Help Probe Mysteries of Evolution
To work out how the genome evolved, bioengineers are recreating it
Trump Immigration Ban May Threaten International Work on Disease
The ensuing damage to scientific collaboration puts the U.S. at risk, researchers say
Obama Science Adviser: Trump Immigration Ban "an Abomination"
John Holdren says the president’s move could strain international science ties, possibly making the world less safe
Gene-Edited Animals Face U.S. Regulatory Crackdown
Last-minute proposal would address CRISPR and other cutting-edge technologies
HIV Prevention Runs into Trouble in South Africa
Vulnerable young women often do not to take drugs that could block infection. Doctors are trying to figure out alternatives
Busting the Billion-Dollar Myth: How to Slash the Cost of Drug Development
A nonprofit organization that creates new drugs for neglected diseases proves development doesn't have to cost a fortune. Can its model work more broadly?
Side Effects Vex Anti-Malaria Push in Sierra Leone
Mass drug distribution was intended to curb cases with Ebola-like symptoms and reduce, in turn, the number of people whose symptoms could be mistaken for those of Ebola
![Images from the Real Face of the Ebola Crisis [Slide Show]](/sciam/cache/file/EA4892CE-2E02-49DC-9EA941F8A2731FC5_small.jpg)
Images from the Real Face of the Ebola Crisis [Slide Show]
A journalist on a monthlong visit to Sierra Leone provides a realistic view of people living their lives while their nation struggles to recover from a deadly outbreak
Images from the Real Face of the Ebola Crisis
A journalist on a monthlong visit to Sierra Leone provides a realistic view of people living their lives while their nation struggles to recover from a deadly outbreak
Ebola Dragnet Has Lots of Holes
False reports and a lack of health care complicate Sierra Leone’s attempt to round up Ebola-positive individuals
Annals of the Malaria War: Legions of Health Workers Launch an Attack
When I stepped into the schoolhouse, I instinctively tucked my camera back inside its case. Health workers had taken over its one room for the day, and a ritualistic exchange of greetings gave way to tense silence.
Annals of the Malaria War: Move over Angelina Jolie
We’re driving on a dirt road and my interpreter, one of the friendliest guys I’ve ever met, is absorbed in a conversation with a health worker in our group.
Genome Reveals Comb Jellies' Ancient Origin
New sequencing data challenges prior thinking that sponges were the most ancient animals in evolutionary history
FDA Backs Safety of Transgenic Fish
A fast-growing salmon moves closer to approval after a fishy delay
Chimp Comedy Brings the Blues
Costumed chimps used to make me grin ear to ear when I saw them on TV. Now I realize there’s little that separates that delight from coveting a Chinese potion made from rhino tusks.
