Oxford University announced Friday it started testing its coronavirus vaccine in children as young as 6 in a move that expands coronavirus vaccine trials to the youngest age group yet.

Kim Bellware. Oxford-AstraZeneca Begins a Vaccine Trial for Children. It’s the Youngest Group yet to Be Tested.  Washington Post. 13 February 2021. www.washingtonpost.com/world/2021/02/13/kids-covid-vaccine-test-oxford/.