"After the performance of a new PCR test determined by the health authorities and the result being, again, negative, the health authorities authorised the resumption of the prime minister's in-person activity and as such, of his public agenda," says a note from António Costa's office.

The prime minister has been, since last Wednesday, in prophylactic confinement determined by the health authorities after having been in contact with a member of the cabinet who tested positive for covid-19.

António Costa had no symptoms and kept working remotely.