If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email email@example.com.
Please tell us what format you need. It will help us if you say what assistive technology you use.
Respiratory syncytial virus (RSV) is an enveloped RNA virus that belongs to the Paramyxoviridae family within the Pneumovirus genus. The virus has a non-segmented, single stranded, negative sense genome that encodes 11 proteins.
The chapter has been updated to provide clearer definitions of the groups in whom palivizumab use is advised. Revisions to the chapter also take into account the revised formulation of Synagis® as a solution for injection.