A simple blood test that can detect Alzheimer’s disease years before symptoms appear may be one step closer to reality, as researchers devise a new method to find it early.

Advances in critical care spared hundreds of thousands of people from the coronavirus. Yet the life-saving measures often have harrowing after-effects.

Moderna Inc. wrongly claimed ownership of the technology it used to develop the Covid-19 vaccine, Pfizer Inc. and BioNTech SE told a federal court in a legal clash between the vaccine titans.

A New York hospital violated federal labor law by firing a nurse who left the operating room during spinal surgery to participate in a union action, a divided National Labor Relations Board ruled.

Essilor Laboratories of America Inc. will pay $23.8 million to settle claims the prescription glass manufacturer paid kickbacks to eye care professionals, the California Department of Insurance said Monday.

The US won’t agree to waive intellectual-property protections for Covid-19 treatments and tests this year -- aligning with developed-nation peers and damaging prospects for a World Trade Organization accord aimed at boosting global access to life-saving medicines.