<prompt> 3 years old boy with a history of fever from a week has diffuse faint rashes, erythema of palms and soles, enlarged unilateral cervical nodes and strawberry tongue. The diagnosis is ___Scarlet feverErythema infectiosumInfectious mononucleosisKawasaki disease  <response>: Kawasaki disease - It is acute febrile mucocutaneous lymph node syndrome affecting infant, children and young. The diagnostic criteria for Kawasaki disease are follow. Fever lastingfor atleast 5 days Presence of any 4 of the following 5 conditions. Bilateralnonpurulent conjunctival injection Changes in mucosa of oropharynx injected pharynx, injected lips , strawberry tongue Changes of peripheral extremities edema, erythemaof hands or feet , desquamation Polymorphous rash Cervical lymphadenopathy Ref : Ghai pediatrics eighth edition pg no 631 ,632 