For example, the most significantly elevated transcript was CD177, a cell surface molecule on neutrophils, which was enhanced in both mild and severe cases (Fig. 1, Additional file 2: Figure S1), was recently identified by proteomics in bronchoalveolar lavage of COVID-19 patients [105], and has also been introduced as a hallmark for Kawasaki syndrome [106], a syndrome that has been observed in several studies being increased in children and adolescents during the SARS-CoV-2 pandemic [107–112]. Here, CD177 is linked to COVID-19.