The National Institutes of Health has issued a moratorium on funding work that puts human stem cells into nonhuman embryos. The concern is that hybrids might develop human brain cells, sperm or eggs.
As federal lawmakers return to work, they faces tough choices about the budget, worrying advocates for medical research, teen pregnancy prevention and other health initiatives.
Federal law requires publicly funded medical researchers to promptly report the results of many experimental treatments. But few are doing so, a review shows, and patients may be hurt.
An American health care worker who contracted Ebola while volunteering in Sierra Leone is now receiving care at the National Institutes of Health Clinical Center.
Trials are underway to see how effective a pill approved for HIV prevention in adults may be for teenagers. But some worry Truvada could end up encouraging reckless sexual behavior among young people.
It's not just government-sponsored medical research that's dwindled in the last few years in the U.S. Drug firms have curbed their investment, too, especially in early-stage hunts for new drugs.
Scientists are growing mock organs made of human cells to better study diseases and help test drugs. Researchers at Johns Hopkins are working on a gut-on-a-chip.
The federal government will suspend funding while it reviews the potential risks and benefits of certain experiments with three viruses: SARS, MERS and influenza.
The way the National Institutes of Health doles out research grants accentuates booms and busts in the financing of scientific research. More variety in the length of grants could help.