Search for: [Abstract = "e was diagnosed in patients with pneumonia, age 0–18 years, laboratoryconfirmed SARS\-CoV\-2 infection, and a new requirement for supplemental oxygen or increased requirement from baseline without new or increased need for ventilatory support \(noninvasive or invasive\). Patients diagnosed with Multisystem Inflammatory Syndrome in Children \(MIS\-C\) were excluded. Criteria for hospital admission were similar to other pediatric infectious diseases, such as dyspnea, seizures, dehydration from fever, vomiting, and diarrhea. According to Polish Expert Group recommendations, hospital referrals were also required for children with congenital heart defects, neurologic diseases, genetic disorders, chronic renal diseases, mucoviscidosis, broncho\-pulmonary dysplasia, immunodeficiency after organ transplantation, and diabetes mellitus. Included also were newborns, infants, and children with obesity, especially with a body mass index \(BMI\) >30 kg\/m2 . Data were collected in all successively admitted patients, based on a standard protocol. On admission, after taking the medical history and performing a physical examination, a planned set of laboratory tests was taken in all patients, including complete blood count \(CBC\) parameters, C\-reactive protein \(CRP\), alanine transaminase \(ALT\), lactate dehydrogenase \(LDH\), creatine kinase \(CK\), ferritin, procalcitonin \(PCT\). A"]

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