PARIS - The first vaccine against dengue fever, from France's Sanofi, provided moderate protection in a large clinical study, but questions remain as to how well it can help fight the world's fastest-growing tropical disease.
- A toddler thought to have been cured of HIV now has detectable levels of the virus in her blood, the child's doctors and U.S. health officials said on Thursday.
CAPE CANAVERAL Fla. - A valiant effort to put a defunct NASA science satellite back to work came to a disappointing end this week after the 36-year-old spacecraft’s propulsion system failed, project organizers said.
MOSCOW - Russia launched its first new design of space rocket since the Soviet era from the northern military space port of Plesetsk on Wednesday, aiming to break its reliance on foreign suppliers as well as the Baikonur cosmodrome in Kazakhstan.
LONDON - Combining two types of polio vaccine, including one that is injected rather than given orally, appears to give better immunity and could speed efforts to eradicate the crippling disease, scientists said on Friday.
LONDON - British scientists have identified a set of 10 proteins in the blood that can predict the onset of Alzheimer's and call this an important step towards developing a test for the incurable brain-wasting disease.
WASHINGTON - You've heard of Sonic the Hedgehog, the video game character. But how about the half-pint hedgehog, the tiniest one that ever lived?
CHICAGO/ATLANTA - Stray vials of the deadly smallpox virus from the 1950s have been discovered at a federal lab near Washington, U.S. health officials said on Tuesday, the second lapse discovered in a month involving a deadly pathogen at a government facility.
OSLO - Swathes of the Amazon may have been grassland until a natural shift to a wetter climate about 2,000 years ago let the rainforests form, according to a study that challenges common belief that the world’s biggest tropical forest is far older.
MOUNTAIN VIEW Calif. - Google smartphones with next-generation 3D sensing technology are about to blast into orbit, where they will become the brains and eyes of ball-shaped hovering robots on the International Space Station.
MUMBAI - India's Sun Pharmaceutical Industries Ltd is recalling 41,127 bottles of antidepressant venlafaxine hydrochloride in the United States after the drug failed to dissolve properly, the U.S. Food and Drug Administration said.