After we sense a threat, our brain center responsible for responding goes into gear, setting off a chain of biochemical reactions leading to the release of cortisol from the adrenal glands.

The first clinical trial of a new vaccine for visceral leishmaniasis (VL) has been launched by the Infectious Disease Research Institute (IDRI), a Seattle-based nonprofit that develops products to prevent, detect, and treat diseases of poverty. The Phase 1 trial is taking place in Washington State, with a companion Phase 1 trial planned in India, an epicenter of the disease.

Researchers at Sanford-Burnham Medical Research Institute (Sanford-Burnham) and the Medical School of Hannover in Germany recently discovered how the botulinum neurotoxin, a potential bioterrorism agent, survives the hostile environment in the stomach on its journey through the human body. Their study, published February 24 in Science, reveals the first 3D structure of a neurotoxin together with its bodyguard, a protein made simultaneously in the same bacterium. The bodyguard keeps the toxin safe through the gut, then lets go as the toxin enters the bloodstream. This new information also reveals the toxin's weak spot—a point in the process that can be targeted with new therapeutics.

Only 10 years ago, deciphering the genetic information from one individual in a matter of weeks to find a certain disease-causing genetic mutation would have been written off as science fiction.