The study will consist of two parts. Initially, it will be of a cross-cutting comparative nature, when a group of healthy patients (control group) and a group of patients diagnosed with MIS-C/PIMS syndrome are compared with each other, based on nasal curettage swabs and peripheral blood, before the inclusion of systemic anti-inflammatory treatment (study group). In addition, an observation of the research group will be carried out, during which swabs and peripheral blood will be taken at two more control points.
The aim of the study is to make an accurate assessment of immune cells obtained from nasal mucosa and peripherial blood of MIS-C patients during the disease and the period of health.