Gilead Sciences Inc. won U.S. approval for a hepatitis C pill that may generate more than $6 billion in annual sales as it leads a market for drugs that work faster to combat the disease with fewer side effects.
Four months after a mild concussion, brain scans show abnormalities even though symptoms have mostly disappeared, raising concerns that patients are at a greater risk of reinjury than previously thought.
Obesity raises the chance of heart attack regardless of whether a person has the cluster of cardiovascular risk factors known as metabolic syndrome, according to a study that challenges previous beliefs.
The plague started in Indonesia. A viral infection, it spread quietly at first, making its way from person to person with coughing and sneezing its only symptoms. Then someone infected with the virus got on a plane.
Testosterone replacement drugs, a $1.6 billion market for AbbVie Inc., Eli Lilly & Co. and others, boosted the odds of having a heart attack, stroke or dying by 29 percent in one of the first studies weighing the therapies’ cardiovascular risk.