Prevention of SARS-CoV-2 virus spread through aerosols As the development of the COVID-19 pandemic to date has shown: aerosols contribute significantly to the occurrence of infection - and combating them can significantly reduce a resurgence of infection levels. The question of effective protective measures will become acute in the autumn, if not before: seasonal factors, new virus variants, declining immunity after vaccination and vaccine hesitancy mean that there is still the risk of a fourth wave of infection in Germany. Against this background, an academic position paper has now been published that provides a summary of the findings on the spread of SARS-CoV-2 viruses through aerosols. The paper was written at the suggestion of the interdisciplinary Commission for Pandemic Research of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) and aims to contribute to establishing a reliable information base that is broadly coordinated among specialists as well as offering concrete advice on how to guard against infection.