Germany - schools
Cases reported in > 40 out of the 825 schools in Berlin, population 3.8 million, only 2 weeks after schools there opened
(different dates in different German states)
Positive tests were for all ages, from the youngest in primary school through to secondary school teens, also teachers.
No reports of serious illness yet, students or staff, but hardly time for this to show.
Berlin schools, like in most states, have compulsory masks only for corridors and breaks, not in classrooms - masks optional there for staff & students
Considerable discussion here about making masks compulsory in classrooms too, which - afaik - so far only the state of North-Rhine Westphalia has ordered
France is going to order this, when their schools return in early September
Berlin has 7-day incidence of 11.2 / 100,000 population, which is only slightly higher than the current German average of 10.2
R-number in Germany has been 1.0 or higher since mid-July
and imo when cases are mostly community spread - lots of small outbreaks instead of a couple of large ones - then R is important again
The RKI says this rise is mostly driven by young holidaymakers returning and also large parties, including family gatherings