Fig. 4From: Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) antigen detection in the Emergency Department: data from a pediatric cohort during the fourth COVID-19 wave in ItalyCases distribution in the observation period (top figure) and Italian trend of the pandemic (bottom figure). As shown in the figures, the peak of positive cases in both our cohort and national trend occurred in January 2022Back to article page