An orthopedic surgeon and inventor with a history of litigating his intellectual property rights fended off SeaSpine Holdings Corp.’s attempt to get a federal judge in Delaware to cancel a patent at issue in their clash over tools and systems to align the spine.

Changes to periods reported by women who received the Covid-19 vaccine are short-lived and smaller compared with those that occur naturally, according to two observational studies in the U.S. and Norway.

Moderna Inc. enrolled the first participant in a clinical trial of its omicron-specific vaccine booster, another step toward fighting the highly transmissible variant that’s spread around the world in a matter of weeks.

A proposed class action against Scripps Health over a 2021 data breach was thrown out of federal court Wednesday, when a Southern District of California judge said too many Californians meant it lacked jurisdiction.

The groups of doctors, hospitals, and clinicians that provide coordinated care through traditional Medicare will serve more than 11 million beneficiaries in 2022, up 324,000, or 3% from last year, the Biden administration announced Wednesday.

California’s top legal official said more than 90% of eligible cities and counties in the most populous U.S. state have signed on to a $26 billion nationwide settlement over the opioid crisis with three major pharmaceutical distributors -- Cardinal Health Inc., McKesson Corp. and AmerisourceBergen Corp. -- and Johnson & Johnson.