Vaccines of live pathogens have saved countless lives, but living vaccines are not totally stripped of their ability to kill and maim: About eight vaccine-induced polio cases occur per year in the United States, for instance.
Heeding advice from an outside scientific panel, a federal judge in Oregon this week ruled that evidence linking silicone breast implants to immune disorders in 70 women was too weak to be presented to a jury.
The heretical idea that prions--naked protein particles without a stitch of genetic material--can cause transmissible disorders such as mad cow disease and Creutzfeldt-Jakob disease (CJD) in people has just received a big boost.
San Francisco--Swarms of barely perceptible tremors could provide the best glimpse yet into deformations in the Earth's deep crust--the root cause of earthquakes--two seismologists announced here this week at the annual meeting of the American Geophysical Union.
China may soon be the third country with a crewed space program. Industry experts believe that the Chinese--thanks to new plans to collaborate with cash-strapped Russian space scientists--will be able to send their first cosmonauts into space by the turn of the century.
Washington--You can toss out the window any convictions about the best form of psychotherapy to get alcoholics to quit drinking. Contrary to a leading theory, it doesn't seem to matter which kind of technique you use.
WASHINGTON--A hundred U.S. scientists will travel next year to Russia's two main nuclear weapons institutes in an effort to spur collaborative research and bolster sagging morale among weapons researchers there.
LONDON--Claims in the British media this week that the government is set to give the green light to transplantation of organs from genetically modified pigs into human patients have been dismissed as "pure speculation" by a Department of Health official.
WASHINGTON--Breaking the sound barrier may have been more sexy, but a computer designed by Intel Corp. has performed an equally awesome feat: It is the first to perform 1 trillion mathematical operations per second, known as a teraflops.
A set of studies in Tanzania has added strong support to a theory that ecologists have long believed but have had difficulty proving: that species are more likely to become extinct in a smaller habitat.
Arizona's warm, dry climate has long been a magnet for people with respiratory problems. But a report in today's Morbidity and Mortality Weekly Report (MMWR) indicates that its climate is also fueling the rise of a pulmonary menace: Valley Fever.
Paleontologists have unearthed in Madagascar one of the most complete dinosaur skulls ever found. The discovery sheds new light on a little-known dinosaur called Majungasaurus, which lived on the island off Africa's southeast coast about 75 million years ago.
Four space-based detectors have picked up what might be a statistical fluke--or a vital clue in what Bonnard Teegarden of NASA's Goddard Space Flight Center in Greenbelt, Maryland, calls "the biggest puzzle in modern astronomy." Teegarden is a member of a U.S.-Russian team that announced this wee
Like many men, male fruit flies have a considerable array of schemes for courting females, from tender touching to solo serenades. But in a surprising find, it appears that in flies all these acts of gallantry are controlled by a single gene active in small clusters of cells in the fly brain.
Washington--Images from Jupiter's moon Europa released at a NASA press conference here today are wowing planetary scientists, who believe they are seeing yet more signs that beneath Europa's icy surface lies