(Switzerland / French)

This question is answered by a team of researchers from the Institute of Global Health at the University of Geneva and the European Organization for Nuclear Research (CERN), in a pre-publication study that has not yet been peer reviewed. In classrooms, where children, the majority of whom are unvaccinated, spend long hours in close contact with each other, measures to control air quality have not yet been implemented. Even the wearing of masks may soon no longer be compulsory.