Fig. 3
From: Respiratory Syncityal Virus A and B: three bronchiolitis seasons in a third level hospital in Italy
Trend of RSV A vs B infection in full term and preterm infants. In this graphic is shown the different behavior in term of infection and severity of RSV A and B in full term and preterm population. In full term population we observed a seasonal alternation of serotype A and B (a); among one season the prevalent serotype is also responsible for most cases requiring oxygen therapy (b). In preterm population, RSV A is always prevalent (c) and more aggressive (d). Numbers are shown in percentage