A 4-year-old child presents with a 5-day history of high fever (39.5°C), conjunctival injection without purulence, dry cracked lips, swollen red tongue ('strawberry tongue'), cervical lymphadenopathy, and erythema of the palms and soles with slight edema. What serious condition must the feldsher suspect, requiring urgent referral for echocardiography and immunoglobulin therapy?
- AKawasaki disease
- BAcute glomerulonephritis
- CEpstein-Barr virus mononucleosis
- DMolluscum contagiosum