Human adenovirus is an important cause of febrile illness affecting mainly respiratory system ranging from pharyngitis, coryza to fatal pneumonia. Though most of the infections are trivial and results in complete recovery but it may result in considerable morbidities and mortalities in selected patients who developed severe adenoviral infections especially Pneumonia(ADVP)/Lower respiratory tract infection(LRTI). Severe adenoviral pneumonia is notorious to produce long term sequelae in the form of post infectious bronchiolitis obliterans (PIBO) or even bronchiectasis. Here we present a case of a ten months old boy developed bronchiectasis as a sequela of severe adenoviral LRTI and needed prolonged and recurrent respiratory support in the pediatric intensive care unit(PICU) and ultimately discharged on home Humidified high flow nasal cannula(HHFNC).