Most common cause of infectious croup is: (A) Adenovirus, (B) Parainfluenza type I, (C) RSV, (D) Influenza
Answer is B. Ans. is 'b' i.e., Parainfluenza type I Infectious croup (Laryngitis & laryngotracheobronchitis)o Nearly always caused by viral infectiono Usually by parainfluenza type I.o Other-RSVParainfluenza 2,3InfluenzaAdenoviruso TreatmentHumidified oxygenIntravenous fluid for adequate hydrationAntibiotic (ampicillin ceftriaxone) if suspecting epiglottitis.