New chemical compound could make humans "invisible" to mosquitoes

It's a breakthrough in the fight against disease-carrying mosquitoes. Researchers have found a chemical that disables the part of the insect's brain that smells humans. Future bug repellents based on the compounds could give people an invisibility cloak against the winged pests. We talked to a scientist who worked on… » 12/06/13 2:05pm 12/06/13 2:05pm

Biologists Deliberately Hold Back Details on Deadly New Toxin

For the first time in over 40 years, scientists have discovered a new form of the toxin responsible for botulism. But they’re keeping many of the details about it a secret for fear that it could be turned into a deadly bioweapon — prompting some scientists to warn that this action can only hold further research back. » 10/11/13 11:20am 10/11/13 11:20am

Rise in allergies has nothing to do with exposure to disease

Back in the late 1980s, scientists suggested that the sudden spike in allergy sufferers was the result of living in sterile homes and overzealous hygiene practices. Our immune systems, went the thinking, weren't being exposed to potentially important infections. A recent report, however, indicates that this "Hygiene… » 10/03/12 9:40am 10/03/12 9:40am