К ВОПРОСУ ДИФФЕРЕНЦИАЛЬНОЙ ДИАГНОСТИКИ БАКТЕРИАЛЬНЫХ ИНФЕКЦИЙ И ПЕДИАТРИЧЕСКОГО МУЛЬТИСИСТЕМНОГО ВОСПАЛИТЕЛЬНОГО СИНДРОМА В ПЕРИОД ПАНДЕМИИ COVID-19

Abstract

During the COVID-19 pandemic, it is necessary to be wary of the development of pediatric multisystem inflammatory syndrome in children (PMIS) who have had a COVID-19 and had antibodies to the SARS-CoV-2 virus. The aim of this work is to describe two clinical cases in children with antibodies to SARS-CoV-2 against the background of yersiniosis in a 12-year-old child and salmonellosis in a 3-year-old child, which proceeded with a pronounced inflammatory reaction and required a differential diagnosis with multisystem inflammatory syndrome. These bacterial infections proceeded with severe intoxication and fever, had a polymorphic clinical picture with exanthema syndrome, conjunctivitis/scleritis, swelling of the palms/feet, diarrhea and toxic kidney damage, with a pronounced systemic inflammatory reaction – high leukocytosis with neutrophilia and lymphopenia, a significant increase in C-reactive protein, procalcitonin, hypercoagulability (increased fibrinogen, D-dimer). Etiotropic antibiotic therapy led to recovery in both cases. Conclusions: During the COVID-19 pandemic, if antibodies to the SARS-CoV-2 virus are detected in children in the presence of signs of systemic inflammation and corresponding symptoms, the alertness of doctors and a timely comprehensive examination are necessary to exclude bacterial infections, also characterized by signs of systemic inflammation, for the purpose of differential diagnosis of PMIS.