AstraZeneca resumed the company’s Covid-19 vaccine testing in the United Kingdom following confirmation from the Medicines Health Regulatory Authority (MHRA) that it was safe to do so.

A Covid-19 vaccine developed by CanSino Biologics and China’s military research unit was shown to be safe and induced immune response in most of the recipients, researchers said.

Regeneron Pharmaceuticals is investing $800 million in Alnylam Pharmaceuticals to develop treatments for eye and central nervous system diseases using gene-silencing RNA interference technology.