Boris Johnson has announced that face coverings will be legally required in cinemas in England from 8 August.
The prime minister was out of hospital for less than three weeks before Carrie Symonds gave birth.
Carrie Symonds and Boris Johnson welcomed a baby boy on Wednesday.
Boris Johnson and Carrie Symonds - who own Jack Russell cross Dilyn - have announced the arrival of a little boy.
The prime minister's pregnant fiancée also praised the "magnificent" NHS in a Twitter post.
Legendary director Francis Ford Coppola has launched a scathing attack on Boris Johnson after the U.K. Prime Minister called a particular scene from The Godfather his favourite in the history of movies.