A study by the Institut Pasteur, published this Friday, in The Lancet Regional Health Europe, shows that the presence of children in a household very significantly increases the risk of being ill with Covid-19.
In detail, the presence of secondary school students is associated with an increased risk of infection in those over 40 years of age of around 30%. A percentage that rises when the child is in primary school and reaches 90% for young children under 3 years old.
These results are all the more worrying given that the epidemic is progressing rapidly among children in this 5th wave. The incidence rate among 6-10 year olds reaches 346 cases per 100,000 inhabitants.
By way of comparison, on the scale of the entire population, the incidence rate is 193 cases per 100,000 inhabitants.
Class closures on the rise
In this dynamic of increasing contamination, class closures have also accelerated. This Friday, the Ministry of National Education noted 8,890 closed classes across the country, against 4,048 a week ago.
Faced with the explosion of class closures, Minister Jean-Michel Blanquer announced a new system of class closures. From now on, there will be no more closures in primary schools from the first case of Covid. All students will have to test themselves and only those who test positive will be isolated. In addition, 6th year students will have to carry out two self-tests per week from Monday. Asked by AFP on the results of the Pasteur Institute, epidemiologist Arnaud Fontanet underlines the importance “of keeping all measures at school, ventilation and masks”.
The ComCor study is based on data from 12,634 people who tested positive between May 23 and August 13, and 5,560 uninfected controls.