Corona outbreaks are currently much more common in schools.

That emerges from the weekly report of the Robert Koch Institute, which was published on Thursday evening.

"After a brief decline during the autumn holidays, a very rapid increase is now being observed." According to this, 1265 outbreaks were recently reported within four weeks, it said.

However, the past two weeks are not yet assessable.

On average, it affects younger students more often than older ones.

The number of school breakouts is currently “very clearly” above the maximum level of the second wave.

At the beginning of November, around three times more outbreaks were reported per week than in the previous year at this time.

"Given the increased frequency of outbreaks, the easier transferability of the delta variant and also the expanded test activities probably play a role, with infections, including asymptomatic ones, being detected at an early stage."

Children twice as often positive

In the fourth corona wave, according to the RKI, there are a particularly large number of positive corona proofs on children and adolescents.

The seven-day incidence in the week up to last Sunday was more than twice as high in the 5 to 9 year olds (829) and in the 10 to 14 year olds (921) as the average for the population (414).

However, students are also tested for Corona particularly frequently.

The RKI initially did not change anything in its general risk assessment, despite the rapidly increasing number of infections.

The risk for those who have not been vaccinated or only vaccinated once is still classified as “very high”, the risk for those who have been completely vaccinated is therefore “moderate”, but increases as the number of infections increases.

Furthermore, the RKI considers the development to be "very worrying".

It is to be feared that “the available intensive care treatment capacities will be exceeded”.

It is imperative "to stay at home if there are symptoms of a new respiratory disease such as a runny nose, sore throat or cough (regardless of vaccination status), to contact the family doctor and have a PCR test carried out," writes the RKI.

According to RKI figures, those who have not been vaccinated are much more likely to come to hospital with a corona infection than those who are fully vaccinated.

For example, the so-called hospitalization incidence (hospital admissions per 100,000 people and week) in the age group 60 and over was 5.25 times higher for the unvaccinated than for the vaccinated.

For 18 to 59 year olds the factor was 6.75, for 12 to 17 year olds it was 6.33.

If a fully vaccinated person falls ill with corona, one speaks of a vaccination breakthrough.

In general, the more people are vaccinated, the more breakthroughs there can be.

Almost half of the elderly intensive care patients were double vaccinated

According to the RKI, 46.4 percent of people aged 60 and over in intensive care units were last fully vaccinated in a four-week period.

It should be noted that almost nine out of ten people in this age group are fully vaccinated.

In the 18- to 59-year-olds, 15.3 percent of the intensive care patients were fully vaccinated, the majority of the critically ill in this age group were unvaccinated.

Incompletely vaccinated persons were not included in this calculation.

The RKI observes that vaccination effectiveness decreases over time.

"This mainly concerns the effectiveness against a symptomatic infection and more clearly the age group of 60 and over." Furthermore, a very good vaccination protection against a serious illness can be assumed for completely vaccinated persons of all age groups.