The U.S. Centers for Disease Control and Prevention is advising some employees to stop taking antibiotics to ward off a possible anthrax infection after preliminary tests suggest it is "highly unlikely" they were inadvertently exposed to live anthrax bacteria earlier this month, a spokesman said on Monday.

People with attention-deficit/hyperactivity disorder who receive drug treatment are not at increased risk of suicidal behavior, according to a new analysis of registry data from Sweden.

The U.S. Food and Drug Administration warned on Wednesday that popular acne products sold over-the-counter under brand names such as Proactiv and Neutrogena can cause rare but serious and potentially life-threatening allergic reactions.

Compared with general anesthesia, regional anesthesia for hip fracture surgery "modestly" reduces length of hospital stay but does not improve 30-day mortality, according to results from a retrospective study.

In type 2 diabetics treated with saxagliptin for two years, the risk for pancreatitis was low and similar to the risk with placebo - and there was no increased risk for pancreatic cancer, Israeli researchers say.

About 50,000 Pakistanis have crossed into eastern Afghanistan to escape air strikes over the past 10 days and 435,000 have fled within their homeland, which could fuel the spread of polio as many are not vaccinated, U.N. agencies said on Tuesday.

The polio virus has been found in sewage samples near Sao Paulo, Brazil, one of the venues for the current World Cup soccer tournament, but no human case of the disease has been reported so far, the World Health Organization said on Monday.

The probiotic Saccharomyces boulardii may be used safely to relieve acute diarrhea in children, researchers from Iran report.

Researchers have reported a restoration of bone mineral density levels with the use of hormone replacement therapy among young women with primary ovarian insufficiency in their recently published results of a 3-year, randomized controlled trial.

Patients with a history of several comorbid conditions may be at an increased risk of chemotherapy-induced febrile neutropenia, according to a recent study.