Before revision:  Here we show that the evolution and strength of the recent\perc  SARS-Cov-2 pandemics, might have been modulated by the intensity of UV-B/A Solar radiation hitting different regions of Earthduring the diffusion of the outbreak .
After revision:  Here we show that the evolution and strength of the recent\perc of virions in open-space concentrations (1.5 x 103 TCID50/mL, higher than typical aerosol) in less than 2 min. We conclude that the characteristic seasonality imprint displayed world-wide by the SARS-Cov-2 pandemics, might have been modulated by the intensity of UV-B/A Solar radiation hitting different regions of Earthduring the diffusion of the outbreak .