At the moment 3,820 students and 554 teachers are positive for coronavirus, a decision to switch to online classes can be made by local authorities in cooperation with county Covid-19 response teams, and "for now the education ministry does not plan to change the school year calendar," state agency Hina said.

The calendar is defined by the decision adopted in late April, regarding the start and end of the school year, the number of working days and the duration of school breaks, the ministry told Hina on Monday.

At the moment 2,226 primary and 1,594 secondary school students are positive for coronavirus.

Zagreb accounts for the majority of those infected with 660 primary and 480 secondary school students, while Lika-Senj County accounts for the fewest – 24 in primary and four in secondary schools.

As for positive teachers, most are in Zagreb, 134, and the fewest in Pozega-Slavonia County, five.

Also, 6,743 primary and 3,372 secondary school students are self-isolating, the largest number in Zagreb, 3,569, and the smallest in Krapina-Zagorje County, 14.

There are also 159 school employees in self-isolation, most in Zagreb, 41, and least in Pozega-Slavonia, Koprivnica-Krizevci and Vukovar-Srijem counties with one in each.