“At school without masks? Think about it ”. Thus warns the biologist Enrico Bucci, a lecturer in the USA at the Temple University of Philadelphia, posting on Facebook the summary graph of the results of a research source Cdc (Centers for Disease Control and Prevention).
“In this study (one among many) – explains the scientist – in dark blue you see the pediatric cases “of Covid-19” in schools that have not adopted masks in the classroom, in light blue those in schools where masks have been made mandatory “.
The dark blue bars in the figure are all higher than the light blue ones. To indicate precisely that, in the classes without a mask, the coronavirus infections Sars-CoV-2 are more than in the classes with the obligation to wear the protective device.