CRP and nervous system disorder: 1. Pediatric age group.2. Persistent fever > 38.5°C.3. Evidence of single or multi-organ dysfunction (shock, cardiac, respiratory, renal, gastrointestinal or neurological disorder) with additional features, which may include children fulfilling full or partial criteria for KD.4. Inflammation markers (neutrophilia, elevated CRP and lymphopenia).5. SARS-CoV-2 PCR testing may be positive or negative.