Bronchiolitis is inflammation of the bronchioles, the smallest air passages of the lungs. Causes The term usually refers to acute viral bronchiolitis, a common disease in infancy. This is most commonly caused by respiratory syncytial virus (RSV, also known as human pneumovirus). (J210) Other viruses which may cause this illness include metapneumovirus, influenza, parainfluenza, coronavirus and rhinovirus. Presentation In a typical case, an infant under twelve months of age develops co ...
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