Ricardo Jorge, the national health institute, said the Delta variant, first identified in India, represented over 60% of cases in the Lisbon area though still less than 15% in the northern half of Portugal.
The Alpha variant, which was previously dominant in Britain, is more prevalent across Portugal’s north, representing 80% of infections there and only 30% in and around Lisbon, according to the institute.
Portugal posted over 1,000 new Covid-19 cases for the fourth straight day on Saturday and the number of people testing newly positive every 24 hours is back to late February levels, when the country was still under lockdown.
However, about 2.5 million of Portugal’s 10 million population has now been fully vaccinated against Covid-19. While…