EU regulator backs using Pfizer COVID shot as booster after other vaccines

The exterior of the European Medicines Agency is seen in Amsterdam, Netherlands, December 18, 2020. REUTERS/Piroschka van de Wouw/File Photo Register now for FREE unlimited access to Reuters.com Register US,…

Researchers identify key regulator of blood stem cell development — ScienceDaily

A protein that masterminds the way DNA is wrapped within chromosomes has a major role in the healthy functioning of blood stem cells, which produce all blood cells in the…