On discharge, children will be followed up at regular intervals of 4 weeks, 3 moths(phone call), 6 months and 1 year, to ensure they are well and also to detect residual or recurring respiratory symptoms i.e. presence of cough/breathlessness/fever, recrudescence of pneumonia and other respiratory illness, fever and upper respiratory tract infection(URTI), growth, need for unscheduled healthcare visits for respiratory symptoms, need for antibiotic treatments for respiratory/upper airway symptoms, abnormal physical findings, over a period of 1 year post-discharge from hospital. Adverse effects of antibiotics e.g. vomiting, diarrhoea, rash and adherence (returned empty bottles) to medication will be recorded.