[Reinfection by SARS-CoV-2 in a child with history of multisystem inflammatory syndrome: a case report]

Area of Science:

• Pediatric infectious diseases
• Immunology
• Epidemiology

Background:

• Multisystem inflammatory syndrome in children (MIS-C) is a rare, serious condition associated with SARS-CoV-2.
• The pathophysiology, prognosis, and recurrence potential of MIS-C remain largely unknown due to its recent emergence.
• Initial descriptions of MIS-C date back to May 2020.

Observation:

• A 12-year-old patient presented with symptoms consistent with MIS-C in January 2021.
• The patient experienced a good clinical recovery following the initial MIS-C diagnosis.
• Five months later, the patient had a subsequent SARS-CoV-2 reinfection with mild symptoms.

Findings:

• The patient did not experience a recurrence of MIS-C following SARS-CoV-2 reinfection.
• This case suggests that MIS-C may not recur even after subsequent viral exposure.
• The clinical course indicates a potentially favorable prognosis in some pediatric cases.

Implications:

• Further research is needed to understand MIS-C recurrence patterns.
• This case contributes to the limited knowledge regarding the long-term outcomes of MIS-C.
• Understanding MIS-C prognosis is crucial for pediatric patient management during the COVID-19 pandemic.