Just under half of those admitted for treatment — 21 people — were originally called "critical" cases, according to the London Evening Standard.
"The vital role of public and professional first responders in the chain of survival at the scene is a very significant factor, and they should be praised," said King's College Hospital trauma center clinical director Duncan Bew, according to the Evening Standard. "No one died who got to hospital."
The newspaper reported that as of Thursday, 29 people remained in hospital care. Ten of those cases had been considered critical.