PT - JOURNAL ARTICLE AU - Guy Postiaux AU - Bruno Zwaenepoel AU - Jacques Louis TI - Chest Physical Therapy in Acute Viral Bronchiolitis: an updated review. AID - 10.4187/respcare.01890 DP - 2013 Jan 01 TA - Respiratory Care PG - respcare.01890 4099 - http://rc.rcjournal.com/content/early/2013/01/02/respcare.01890.short 4100 - http://rc.rcjournal.com/content/early/2013/01/02/respcare.01890.full AB - Acute viral bronchiolitis (AVB) is the most common disorder and the leading cause of respiratory failure in infants (<24 months of age). Respiratory syncytial virus is the most common pathogen (85%), but other organisms produce a similar clinical picture.1 The disease can be graded as severe, moderate or mild and, for each presentation, a score is applied as proposed by Wang. 2 The Wang clinical severity score (CS) is now prevailing in evaluating the treatment with hypertonic saline nebulization or CPT. The CS has a good inter-observer agreement among care-givers which is reinforcing its value. 3, 4, 5, 6