Recommendations to prevent SARS-CoV-2 spread via aerosols in hospitals and nursing homes A variety of measures are necessary to prevent the spread of the coronavirus SARS-CoV-2 in hospitals and nursing homes. It is particularly important to develop an appropriate strategy to protect healthcare workers from airborne transmission. Researchers from the Leibniz Institute for Tropospheric Research (TROPOS) in Leipzig, the CSIR National Physical Laboratory in New Delhi, the Institute of Atmospheric Science and Climate (ISAC) in Rome and 2B Technologies, Colorado recommend that more attention is required in respect to indoor air in such facilities and to further training of the staff. From an aerosol experts' point of view, it is necessary to combine these different measures, the research team writes in an Editorial article in the