In this handout photo issued by 10 Downing Street, Britain’s Prime Minister Boris Johnson speaks from 10 Downing Street praising NHS staff in a video message, after he was discharged from the hospital a week after being admitted with persistent coronavirus symptoms.

In this handout photo issued by 10 Downing Street, Britain’s Prime Minister Boris Johnson speaks from 10 Downing Street praising NHS staff in a video message, after he was discharged from the hospital a week after being admitted with persistent coronavirus symptoms.