NPPB and pericarditis: Children and adolescents 0–19 years of age with fever > 3 days and two of the following:• Rash or bilateral non-purulent conjunctivitis or mucocutaneous inflammation signs (oral, hands or feet).  • Hypotension or shock.  • Features of myocardial dysfunction, pericarditis, valvulitis or coronary abnormalities (including ECHO findings or elevated troponin/NT-proBNP),  • Evidence of coagulopathy (by PT, PTT, elevated D-dimers).  • Acute gastrointestinal problems (diarrhoea, vomiting or abdominal pain) AND