<prompt> A children presents with running, nose, breathlessness, family history positive, Most likely diagnosis isBronchiolitisViral pneumoniaBronchial asthmaNone  <response>: Bronchial asthma 353 - Ghai 6th 359-Ghai 7th Bronchiolitis is often confused with bronchial asthma. The latter is unusual below the age of one year. There is often a family history of asthma Viral pneumonia - RSV is the most important cause in infant under 2 years of age. There is no evidence of consolidation clinically. Radiological signs consists of perihilar and peri bronchial infiltrate 