We report a cluster of surprisingly high spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) associated with a single nursery in Poland. Our findings contrast with the presumed negligible role of children in driving the SARS-CoV-2 pandemic. Children 1-2 years of age might be effective SARS-CoV-2 spreaders.
Keywords: COVID-19; SARS-CoV-2; coronavirus disease; daycare; infectiousness; respiratory infections; severe acute respiratory syndrome coronavirus 2; toddlers; transmission; viruses; zoonoses.