Neonatal Multi-System Inflammatory Syndrome Associated With Covid-19 Exposure in Two Cases From Iran

Introduction:Immune dysregulation following exposure to Covid-19 results in MIS-N (Multi-system Inflammatory Syndrome in Neonates). MIS-N affects various systems in the body and is diagnosed with a positive history of PCR test, positive serologic test, and a history of contact with those vectors of COVID-19 infection. This case series aimed to differentiate from possible misdiagnosis about MIS-N.Case Presentation:Both cases are term neonates with positive serology of COVID -19 and the 2nd case with a mother's positive history of Covid-19 PCR at 30 weeks of pregnancy. The first case was admitted with diarrhea, dehydration, fever for three days, and rash on the 3rd day of hospitalization. We admitted the 2nd case on the 22nd day of birth with a cough, rashes on the head, palms, and soles for two days. Both cases responded to corticosteroid treatment that confirmed MIS-N. Finally, we discharged them with a stable and normal condition in follow-ups.Conclusions:In inflammatory syndromes, especially in delayed phases of COVID cytokine storms, the mortality and morbidity caused by infections diminish with proper interventions and inhibited cytokine cascade inflammations.