Greece has reported a jump in daily Covid-19 infections after many weeks of declining numbers that prompted authorities to lift most of the country's coronavirus restrictions.

Public health authorities reported 1,797 new daily cases, more than twice the level of 801 cases reported on Monday, bringing the total number of infections to 429,144. Covid-related deaths have reached 12,754, according to Reuters.

Health experts have voiced concern over the coronavirus and its more contagious Delta variant after infections started rising again in recent days. However, a health official said that many of the new positive test cases are youngsters, who are much less likely to fall seriously ill.