"Andrew Pollard, professor of paediatric infection and immunity, and chief investigator on the Oxford vaccine trial, said: “While most children are relatively unaffected by coronavirus and are unlikely to become unwell with the infection, it is important to establish the safety and immune response to the vaccine in children and young people as some children may benefit from vaccination.
240 children will get the vaccine and 60 others receiving a control meningitis jab."
https://www.walesonline.co.uk/news/uk-news/300-child-volunteers-test-covid-19831572?fbclid=IwAR2yxaYalFrSAEmoKLrQX4OIc3khe8ORTbHeh5qCV97jGd28