A 3 Month old Child presents with Biphasic stridor and Barking cough. All are true eXcept

Acute bronchioli s is predominantly a viral disease. Respiratory syncytial virus (RSV) is responsible for >50% of cases. Treatment For infants <3 yr of age, it is acceptable to continue to administer inhaled medications through an MDI with mask and spacer if a therapeutic benefit is demonstrated. ref: KD Tripathi 8th ed.